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Constitutional Foundations · Core Reference

Constitutional Boundaries: Idaho & U.S.

Understanding the Hierarchy of Law, Constitutional Limits, and the Rights of the People in Idaho Government

Updated April 2, 2026 · By Jeff A. Pierson · Constitutional Foundations

The Hierarchy of Law: A Foundation for All Government Authority

Every elected official in Idaho must understand a fundamental principle: not all laws are equal. There is a constitutional hierarchy that determines which laws prevail when conflicts arise. This is not a matter of opinion or interpretation, it is the bedrock upon which all legitimate government authority rests.

The hierarchy is straightforward and absolute:[1]

1. The U.S. Constitution (the supreme law of the land)
2. Federal Statutes (enacted by Congress, consistent with the Constitution)
3. The Idaho Constitution (the supreme law within Idaho, when not in conflict with the U.S. Constitution)
4. Idaho Statutes (enacted by the Idaho Legislature, consistent with both constitutions)
5. County Ordinances and Administrative Rules (enacted by county commissioners, consistent with all higher authority)
U.S. Constitution, Art. VI, Cl. 2 (Supremacy Clause)

This hierarchy exists because of the Supremacy Clause, which declares the Constitution and federal law "the supreme Law of the Land."[2] But the Supremacy Clause does not grant unlimited power to the federal government. It applies only to laws "made in Pursuance" of the Constitution, meaning federal laws must themselves be constitutional to be supreme.

For county commissioners, the implication is critical: when a federal mandate, state statute, or state agency rule conflicts with the Constitution (either U.S. or Idaho), the constitutional provision prevails. A court, not an individual officeholder, decides whether a conflict exists. A county ordinance that violates the Idaho Constitution is void. An Idaho statute that violates the U.S. Constitution is void. And a federal mandate that exceeds constitutional authority can be challenged in court.

Liberty Perspective

The hierarchy of law is not ambiguous. When a county commissioner faces pressure to comply with a mandate from the state or federal government, the first question must always be: "Is this constitutional?" If the answer appears to be no, take the question to the county prosecuting attorney, who is the board's legal advisor, before acting. The oath of office to uphold the Constitution is the reason the question must be asked.

Understanding this hierarchy empowers elected officials to exercise their constitutional authority while respecting legitimate limits. It also protects them from the common mistake of treating all rules and mandates as equally binding. They are not.

The Idaho Declaration of Rights: Article I

The Idaho Constitution begins not with the structure of government, but with the Declaration of Rights. This placement is intentional and significant. It establishes that the foundation of Idaho government is the protection of individual liberty, not the accumulation of government power.

The following sections of Article I are essential for any county official to understand:

§ 1: Inalienable Rights and the Purpose of Government

Idaho's Constitution declares that "All men are by nature free and equal, and have certain inalienable rights, among which are enjoying and defending life and liberty; acquiring, possessing and protecting property; pursuing happiness and securing safety."[3] Notice the breadth: life, liberty, property, happiness, and safety. These are described as "inalienable."

Section 2 adds that government "is instituted for their equal protection and benefit, and they have the right to alter, reform or abolish the same whenever they may deem it necessary."[4] This is operative constitutional language that gives content and purpose to government authority.

§ 2: Political Power Inherent in the People

Idaho's Constitution directly challenges the notion that government possesses inherent, sovereign power. Instead, it declares that "All political power is inherent in the people," and that government exists for their "equal protection and benefit."[5] Officials therefore act on authority the people have conferred. This makes explicit what is sometimes merely implied in federal constitutional law: the people do not derive rights from government. Government derives its authority from the people.

For county commissioners, this means authority is not theirs to wield as they see fit. It is delegated to them by the people, limited by the Constitution and by the powers the Legislature has given counties, and subject to revocation if misused.

§ 4: Religious Liberty

Article I, section 4 provides in part: "The exercise and enjoyment of religious faith and worship shall forever be guaranteed; and no person shall be denied any civil or political right, privilege, or capacity on account of his religious opinions." It also provides that "No person shall be required to attend or support any ministry or place of worship, religious sect or denomination, or pay tithes against his consent; nor shall any preference be given by law to any religious denomination or mode of worship." The same section states that liberty of conscience does not excuse acts of licentiousness or justify polygamous or other practices inconsistent with morality or the peace or safety of the state.[6]

Idaho also has a statute, Idaho Code title 73, chapter 4 (Free Exercise of Religion Protected), that limits government burdens on religious exercise. Whether the state constitution gives broader protection than the First Amendment in a given case is a question for the courts, and this page does not claim it does. County officials should be careful with policies that burden religious practice, even when those policies apply neutrally to everyone.

§ 5: Habeas Corpus: The Great Writ

Idaho provides that "The privilege of the writ of habeas corpus shall not be suspended, unless in case of rebellion or invasion, the public safety requires it, and then only in such manner as shall be prescribed by law."[7] This ancient writ is the ultimate protection against unlawful detention. County jails and detention facilities must honor habeas corpus petitions, and sheriffs must be prepared to defend the detention or release the detainee.

§ 9: Freedom of Speech and § 10: Assembly, Petition, and Instruction

Section 9 provides: "Every person may freely speak, write and publish on all subjects, being responsible for the abuse of that liberty." Section 10 provides: "The people shall have the right to assemble in a peaceable manner, to consult for their common good; to instruct their representatives, and to petition the legislature for the redress of grievances."[8] Note that the petition clause in section 10 names the legislature. The Open Meeting Law and the First Amendment, not section 10, are the usual sources of rules on public comment at county meetings, and a county is not required to set aside time for public comment at every meeting. Still, viewpoint-based removal of speakers or retaliation against critics raises serious First Amendment and section 9 problems.

§ 13: Due Process of Law

Section 13 provides that no person shall "be deprived of life, liberty or property without due process of law."[9] This applies to county administrative actions as well as judicial proceedings. Terminating employment, revoking permits, or imposing fines must follow procedures that provide notice, opportunity to be heard, and fair adjudication.

§ 14: Property Rights and the Takings Clause

Section 1 protects "acquiring, possessing and protecting property," and section 14 provides: "Private property may be taken for public use, but not until a just compensation, to be ascertained in the manner prescribed by law, shall be paid therefor."[10] This is the takings clause, and it creates a profound check on county land-use authority.

When county zoning, development restrictions, or land-use regulations reduce property value or prevent the beneficial use of land, the question arises: has this constituted a "taking"? Under the U.S. Supreme Court's decision in Pennsylvania Coal Co. v. Mahon, a regulation that goes too far can be a taking even without physical occupation. The Idaho Supreme Court has read the state clause more narrowly: in Covington v. Jefferson County the Court held that property must be "taken" and not merely damaged and applied the Lucas "all economically beneficial uses" test to a regulatory claim, and in Moon v. North Idaho Farmers Ass'n it said that the Idaho Constitution "does not allow less than a total deprivation of use or denial of access," while the federal clause is analyzed under U.S. Supreme Court precedent.[11] Idaho also has a Regulatory Takings Act (Idaho Code title 67, chapter 80). Later decisions may have refined these holdings. County commissioners must be cautious about imposing restrictions so severe that they convert property owners into non-compensated stewards of public interests.

§ 17: Unreasonable Search and Seizure

The Idaho Constitution provides: "The right of the people to be secure in their persons, houses, papers and effects against unreasonable searches and seizures shall not be violated; and no warrant shall issue without probable cause shown by affidavit, particularly describing the place to be searched and the person or thing to be seized."[12]

County law enforcement officers acting on county authority must comply with this provision, as must county code enforcement officers and any county employee authorized to inspect property. Searches and seizures must be reasonable, and warrants require probable cause. Warrantless searches are presumptively unreasonable unless a recognized exception, such as consent or exigent circumstances, applies.

§ 21: The Retained Rights Clause: A Liberty Safeguard

Perhaps the most powerful provision is one often overlooked: "This enumeration of rights shall not be construed to impair or deny other rights retained by the people."[13]

This is remarkable. It declares that the rights listed in Article I are not exhaustive. The people retain unenumerated rights. This is similar to the Ninth Amendment of the U.S. Constitution, but this clause is worded differently. It means that the list of rights in Article I is not necessarily complete. How far courts have enforced unlisted rights under this clause is a separate question that this page does not address.

Liberty Perspective

Idaho's Declaration of Rights is more protective of individual liberty in several respects than the U.S. Constitution. Where Idaho provides greater protection, such as the retained rights clause in § 21 and the firearms language in § 11, county officials should be aware of the more protective standard. In close cases, bring the question to the county prosecuting attorney, who advises the board, rather than deciding it alone. This honors both the hierarchy of law and the liberty-first design of Idaho's Constitution.

The U.S. Bill of Rights Applied Locally

The U.S. Bill of Rights, the first ten amendments, was originally understood to constrain only the federal government. This changed with the Fourteenth Amendment, ratified in 1868, which incorporated many of those rights and applied them to the states.

Through a series of Supreme Court decisions, nearly all Bill of Rights protections have been "incorporated" and now apply to state and local governments.[14] This is critical: a county commissioner cannot violate freedom of speech, religion, assembly, due process, or other constitutional rights any more than Congress can.

First Amendment: Speech, Religion, Assembly

County governments cannot suppress speech, establish religion, or prevent peaceful assembly. Public comment at county meetings cannot be censored based on viewpoint. Religious organizations cannot be excluded from benefits available to other organizations. Protests and demonstrations cannot be prohibited merely because officials disagree with the message.

Second Amendment: Right to Keep and Bear Arms

Idaho's version of this right is actually stronger than the federal amendment. While the Second Amendment protects "the right of the people to keep and bear Arms" and opens with a militia clause, the Idaho Constitution provides: "The people have the right to keep and bear arms, which right shall not be abridged."[15] The Idaho version has no militia language. It then adds exceptions (for example, laws governing concealed carry, minimum sentences, and possession by convicted felons) and states that "No law shall impose licensure, registration or special taxation on the ownership or possession of firearms or ammunition." In addition, Idaho Code § 18-3302J preempts county firearms regulation except as state statute expressly allows.

Fourth Amendment: Unreasonable Search and Seizure

County law enforcement cannot conduct searches or seizures without constitutional authority. Warrantless searches of homes or persons are unconstitutional. Even searches of vehicles or property require reasonable suspicion or probable cause, and warrants are required absent exigent circumstances.

Fifth Amendment: Due Process and Self-Incrimination

County administrative proceedings must afford due process. Individuals cannot be compelled to incriminate themselves. Taking or condemning property requires just compensation.

Fourteenth Amendment: Equal Protection and Due Process

County actions must not discriminate based on race, religion, national origin, sex, or other protected classes. All persons are entitled to equal protection of the law and due process of law, applied equally by county government.

The Tenth Amendment and State Sovereignty

The Tenth Amendment provides: "The powers not delegated to the United States by the Constitution, nor prohibited by it to the States, are reserved to the States respectively, or to the people."[16]

This amendment is often invoked but rarely understood. It does not grant powers to the states; the states already possess all powers except those delegated to the federal government. Rather, it limits federal authority. Congress cannot regulate any subject unless the Constitution grants it that power. The federal government has only enumerated powers, those listed in the Constitution. Powers not delegated to it and not prohibited to the States "are reserved to the States respectively, or to the people."

For Idaho, this means the state possesses broad authority to regulate commerce, health, safety, and local affairs. But the Tenth Amendment also goes further: power is reserved "to the people." This reflects the idea that people keep the liberty that government has not lawfully restricted.

County governments, however, are creatures of state law. They have the powers the Idaho Constitution and Legislature give them. Article XII, section 2 provides: "Any county or incorporated city or town may make and enforce, within its limits, all such local police, sanitary and other regulations as are not in conflict with its charter or with the general laws." Idaho Code § 31-714 lets the board of county commissioners pass ordinances "not repugnant to law" that are necessary to discharge its powers and to provide for safety, health and good order, and Idaho Code § 31-604 lists county corporate powers, including such further authority as is necessary to carry out duties imposed by Idaho Code and the constitution. Idaho is therefore not a strict Dillon's Rule state in the sense of denying counties all implied power, but a county ordinance that conflicts with a general state law is invalid.

Constitutional Tension

Federal agencies often issue directives framed as "requirements" for receiving federal funding or participating in federal programs. But the federal government cannot compel states or counties to enforce federal law. When federal agencies demand that county sheriffs enforce immigration law, or that county officials implement federal regulations, the question arises: is this a legitimate use of federal spending power, or an unconstitutional commandeering of state officers? The answer depends on whether the county voluntarily accepts the federal program and its conditions, or is coerced into participation.

Federal Programs and Constitutional Conflicts

The Anti-Commandeering Doctrine

In Printz v. United States, the Supreme Court held that Congress cannot command state executive officers to carry out a federal regulatory program, and quoted New York v. United States for the rule that "the Federal Government may not compel the States to enact or administer a federal regulatory program."[17] This decision, reaffirmed in New York v. United States and reinforced in Murphy v. NCAA,[18][19] establishes that the federal government cannot "commandeer" state and local officials to enforce federal law.

What does this mean practically? Congress and federal agencies cannot order a county sheriff to enforce federal immigration law, although a county may agree to cooperate, and federal law itself directly regulates some state and local conduct. Federal funding conditions are governed by the spending-power cases discussed below. The anti-commandeering doctrine protects state and local sovereignty against federal overreach.

The doctrine bars Congress from commanding state and local officers, but it does not prevent Congress from conditioning federal funds on compliance with federal requirements, if the conditions are unambiguous and the state or county has a genuine choice to accept or reject the funds.[20] This is where the line becomes difficult. In NFIB v. Sebelius, the Supreme Court held that Congress could not threaten states with the loss of their existing Medicaid funding for declining the ACA's Medicaid expansion, because that threat was coercive. The Court limited the remedy to that threat, so the expansion itself remained available to states that chose it.[21]

For county commissioners, the practical implication is this: carefully evaluate federal and state grant conditions. If the conditions compel the county to undertake obligations beyond its enumerated powers, or if the funding pressure is so severe that refusal is not realistic, the condition may be open to challenge. Whether to decline a grant or raise that challenge is a decision for the board, taken with the advice of the county prosecuting attorney.

Regulatory Mandates Without Funding

Idaho and its counties frequently face mandates to implement state or federal regulations without corresponding funding. Unfunded mandates are increasingly common in criminal justice, environmental regulation, and social services. When the state requires counties to provide services or implement programs but does not provide funding, the county must either raise taxes or cut services.

Article XVIII of the Idaho Constitution deals with county organization and county officers; the text of Article XVIII does not contain a general requirement that the state fund the programs it mandates.[22] Any limit on unfunded mandates would have to come from statute or from a provision this page has not identified, so counties should not assume a constitutional right to reimbursement. The usual remedy is legislative advocacy.

Idaho-Specific Constitutional Tensions

Property Tax Limits vs. Spending Mandates

The Idaho Constitution does not impose a 1% property tax cap; voters rejected initiatives to set one in 1992 and 1996. Article VII, section 9 limits only the state-purpose property tax rate to ten mills unless voters approve more. County property tax revenue is limited mainly by statute: Idaho Code § 63-802 caps the growth of a taxing district's property tax budget at a growth factor of not more than three percent, with additions for new construction and certain other items.[23] Article VIII, section 3 separately limits county debt. These limits constrain county revenue. Yet the state and federal government continue to impose new spending obligations on counties, from criminal justice requirements to environmental compliance to social services mandates.

Constitutional Tension

Counties can face a squeeze: statutory property tax limits slow revenue growth, while state and federal mandates require spending growth. When mandated spending exceeds available revenue, counties are forced to cut essential services, increase other taxes (if authorized), or ask voters for tax overrides. Only the Legislature can change the budget limits or the mandates themselves.

Land Use Regulation vs. Property Rights

The Local Land Use Planning Act (LLUPA) authorizes counties to adopt land use plans and zoning ordinances.[24] This is a legitimate delegation of power. However, when zoning becomes so restrictive that property owners cannot use their land, a taking issue emerges.

Federal law recognizes that a regulation that goes too far can be a taking, and the Idaho Supreme Court has said (in Moon, relying on Covington) that under the Idaho Constitution a regulatory taking requires a total deprivation of use or denial of access.[25] County planning departments and zoning boards should consider whether proposed restrictions would deprive a property owner of all beneficial use. If so, compensation may be required, or the restriction should be modified. Idaho Code title 67, chapter 80 (the Regulatory Takings Act) also directs state and local governments to evaluate regulatory actions for takings.

Constitutional Tension

The tension between land-use regulation (a legitimate government function) and property rights protection is perhaps the most litigated constitutional issue in Idaho. Communities want to plan growth and preserve character. Owners want to use their land productively. When regulations prevent productive use without compensation, they raise a takings claim under Article I, § 14 and the Fifth and Fourteenth Amendments. Counties should proceed carefully, ensuring that zoning achieves legitimate purposes without becoming a vehicle for uncompensated private takings.

Initiative and Referendum Power vs. Legislative Preemption

Idaho's Constitution reserves to the people the statewide power of initiative and referendum, under conditions and in the manner provided by acts of the legislature.[26] Citizens can collect signatures and place measures on the statewide ballot to enact laws or to approve or reject acts of the legislature. This is a powerful check on government authority.

However, the Idaho Legislature has preempted local regulation in some fields by enacting state law that prohibits cities and counties from adopting certain ordinances. Firearms regulation under Idaho Code § 18-3302J is one example. Each preemption narrows local authority.

Article XII, section 2 makes local regulations valid only if they do not conflict with "the general laws," so a general state law ordinarily controls over a conflicting county ordinance. The statewide initiative power in Article III, section 1 does not itself give counties a shield against preemption.

Right to Keep and Bear Arms vs. Local Regulation

Idaho's Constitution provides: "The people have the right to keep and bear arms, which right shall not be abridged," followed by listed exceptions and a bar on licensure, registration or special taxation of firearms or ammunition ownership.[27] It contains no militia clause.

Yet some cities and counties have attempted to adopt restrictions on firearms carrying, storage requirements, or bans on certain weapons. Idaho Code § 18-3302J declares such local laws void and unenforceable, with limited exceptions such as regulating discharge of firearms within county limits where state law allows.

Enumerated Powers: The Doctrine That Constrains Government

Both the federal government and the Idaho state government operate under a doctrine of enumerated powers. The federal government has only those powers granted by the Constitution; the state holds the general police power, limited by the federal and state constitutions. Counties have the powers the Idaho Constitution and the Legislature give them.

This is not a doctrine that can be ignored or worked around. It is foundational. When a county official acts without legal authority, that action is open to challenge as beyond the office's powers, however wise or popular it may seem.

At the federal level, the Supreme Court has said that the spending power is broad but not unlimited (see footnote 20). For counties, the police power in Article XII, section 2 and Idaho Code § 31-714 is real, but it reaches only regulations "not in conflict" with the general laws and the constitutions. A bare appeal to "public welfare" does not by itself authorize any regulation.

Liberty Perspective

The enumerated powers doctrine is the ultimate check on government tyranny. It prevents officials from claiming inherent powers they do not possess. Every county ordinance, every policy, every action must rest on authority from the Idaho Constitution or a state statute. If that authority does not exist, the action is open to challenge as void. County officials who understand and apply this doctrine become guardians of constitutional liberty, not merely administrators of government programs.

County commissioners should require that every proposed action, whether an ordinance, policy, or administrative decision, be analyzed for constitutional authority. The question must always be: does this action rest on an enumerated power, or does it exceed our delegated authority? If the latter, it must be rejected, regardless of its merits.

Practical Application for County Officials

Understanding constitutional boundaries is essential, but knowledge without application is useless. How should county commissioners apply these principles in actual governance?

The Constitutional Audit

Each county should undertake a constitutional audit of existing ordinances and policies. Which ones rest on valid delegation of power from the Legislature? Which ones might conflict with constitutional rights? Which might constitute regulatory takings without compensation? The county prosecuting attorney, who is the board's legal advisor, can review major ordinances and policies for constitutional compliance. Where vulnerabilities exist, the county can modify the ordinance or defend it in court.

Public Participation and Due Process

Idaho's Constitution, in § 10, protects the right "to instruct their representatives, and to petition the legislature for the redress of grievances," and § 9 protects free speech. County commissioners should make public comment periods genuine, not performative, and speakers can be held to reasonable time and conduct rules that apply without regard to viewpoint. Removing a speaker for criticizing the board, or retaliating against critics, raises serious constitutional problems.

Property Rights Protection

Before adopting zoning changes, development restrictions, or land-use regulations, county planning bodies must consider whether the restrictions will effect a taking. If a restriction prevents all beneficial use or substantially reduces property value, either compensation must be provided or the restriction must be modified. The easier path is to design land-use policy that achieves public purposes without stripping property owners of all value.

Resisting Unconstitutional Mandates

When the state or federal government attempts to impose mandates that exceed constitutional authority or violate anti-commandeering principles, county commissioners should not automatically comply. Instead, the board can ask the county prosecuting attorney to analyze whether the mandate is constitutional. If there is a real question, the county can raise it in court or through legislative advocacy. Declining to comply on a board's own reading of the Constitution carries risk, because a court makes the final call.

Preserving Local Democracy

The people retain powers not delegated to government. Where the Legislature has not acted, and where constitutional rights are not in question, the default should be individual liberty, not government regulation. County commissioners should be skeptical of demands to regulate private conduct that does not directly harm public health or safety. The enumerated powers doctrine exists precisely to check this impulse.

Balancing Individual Rights and Public Needs

County government must balance the protection of constitutional rights with legitimate public needs. Public safety, environmental protection, and land-use planning are legitimate functions. But these functions cannot be pursued by violating individual rights or exceeding constitutional authority. When these interests conflict, the constitutional protection prevails.

For example, a county might wish to restrict firearms carrying in certain areas for public safety. But Article I, section 11 and Idaho Code § 18-3302J limit what a county may do about firearms, so that public safety interest must be pursued through means state law allows.

Liberty Perspective

County commissioners take an oath to support the Constitutions of the United States and Idaho. The oath binds commissioners to uphold constitutional limits even when doing so is politically difficult. When pressed to implement an unconstitutional policy, or to exceed enumerated authority, commissioners must remember their oath. The people elected them to govern according to law, constitutional law. Abandoning that duty, even for seemingly good purposes, betrays the trust of constituents and undermines the rule of law.

Conclusion: Liberty as the Default

Constitutional boundaries exist not to frustrate good governance, but to protect individual liberty and prevent tyranny. They establish that government is servant, not master; that officials wield only delegated power; and that the people retain ultimate sovereignty.

For Idaho county commissioners, this means approaching governance with constitutional humility. The question is never "what do we want to do?" but rather "are we authorized to do this?" The hierarchy of law is clear: constitutional rights come first, enumerated powers second, and popular preferences third. When these conflict, the Constitution prevails.

Idaho's Constitution begins with a Declaration of Rights, which includes the statement that government is instituted for the equal protection and benefit of the people. County commissioners who internalize this principle become defenders of the people's fundamental freedoms. Those who do not risk becoming the instruments of tyranny, no matter how well-intentioned their purposes.

The constitutional boundaries examined in this training are not constraints to escape. They are the foundation of legitimate authority. Understand them, apply them, and defend them. This is the sworn duty of every elected official.

Footnotes

[1] U.S. Constitution, Art. VI, Cl. 2: "This Constitution, and the Laws of the United States which shall be made in Pursuance thereof... shall be the supreme Law of the Land."

[2] Marbury v. Madison, 5 U.S. 137 (1803) (establishing that the Constitution is the supreme law and courts have duty to strike down unconstitutional laws).

[3] Idaho Constitution, Art. I, § 1: "All men are by nature free and equal, and have certain inalienable rights, among which are enjoying and defending life and liberty; acquiring, possessing and protecting property; pursuing happiness and securing safety."

[4] Idaho Constitution, Art. I, § 2: "...they have the right to alter, reform or abolish the same whenever they may deem it necessary; and no special privileges or immunities shall ever be granted that may not be altered, revoked, or repealed by the legislature."

[5] Idaho Constitution, Art. I, § 2: "All political power is inherent in the people. Government is instituted for their equal protection and benefit, and they have the right to alter, reform or abolish the same whenever they may deem it necessary; and no special privileges or immunities shall ever be granted that may not be altered, revoked, or repealed by the legislature."

[6] Idaho Constitution, Art. I, § 4 (guaranty of religious liberty).

[7] Idaho Constitution, Art. I, § 5: "The privilege of the writ of habeas corpus shall not be suspended, unless in case of rebellion or invasion, the public safety requires it, and then only in such manner as shall be prescribed by law."

[8] Idaho Constitution, Art. I, § 9 ("Every person may freely speak, write and publish on all subjects, being responsible for the abuse of that liberty") and § 10 ("The people shall have the right to assemble in a peaceable manner, to consult for their common good; to instruct their representatives, and to petition the legislature for the redress of grievances").

[9] Idaho Constitution, Art. I, § 13: "...nor be deprived of life, liberty or property without due process of law."

[10] Idaho Constitution, Art. I, § 1 and § 14: "Private property may be taken for public use, but not until a just compensation, to be ascertained in the manner prescribed by law, shall be paid therefor."

[11] Pennsylvania Coal Co. v. Mahon, 260 U.S. 393 (1922) (establishing that regulations can constitute a taking requiring compensation); Covington v. Jefferson County, 137 Idaho 777, 53 P.3d 828 (2002), and Moon v. North Idaho Farmers Ass'n, 140 Idaho 536, 96 P.3d 637 (2004) (Covington: property must be "taken" and not merely damaged, and a diminution in value alone does not establish a regulatory taking under the Idaho or federal clause; Moon: under the Idaho Constitution a regulatory taking requires a total deprivation of use or denial of access, and the federal claim is analyzed under Lucas).

[12] Idaho Constitution, Art. I, § 17: "The right of the people to be secure in their persons, houses, papers and effects against unreasonable searches and seizures shall not be violated; and no warrant shall issue without probable cause shown by affidavit, particularly describing the place to be searched and the person or thing to be seized."

[13] Idaho Constitution, Art. I, § 21: "This enumeration of rights shall not be construed to impair or deny other rights retained by the people."

[14] Duncan v. Louisiana, 391 U.S. 145 (1968) (incorporating Sixth Amendment right to jury trial); McDonald v. City of Chicago, 561 U.S. 742 (2010) (incorporating Second Amendment); see generally Incorporation of the Bill of Rights.

[15] Idaho Constitution, Art. I, § 11: "The people have the right to keep and bear arms, which right shall not be abridged; but this provision shall not prevent the passage of laws to govern the carrying of weapons concealed on the person..." (the section continues with further exceptions and a bar on licensure, registration or special taxation of firearms or ammunition); Idaho Code § 18-3302J.

[16] U.S. Constitution, Amendment X: "The powers not delegated to the United States by the Constitution, nor prohibited by it to the States, are reserved to the States respectively, or to the people."

[17] Printz v. United States, 521 U.S. 898 (1997) (holding that Congress cannot require state and local chief law enforcement officers to conduct background checks under the Brady Act's interim provisions).

[18] New York v. United States, 505 U.S. 144 (1992) (holding that federal government cannot compel states to enact regulatory programs).

[19] Murphy v. NCAA, 584 U.S. 453 (2018) (reinforcing anti-commandeering doctrine and striking down federal prohibition on state sports betting).

[20] South Dakota v. Dole, 483 U.S. 203 (1987) (establishing conditions on federal spending are constitutional if related to federal program and not coercive).

[21] NFIB v. Sebelius, 567 U.S. 519 (2012) (holding that the threat to withdraw existing Medicaid funds from states that declined the expansion was unconstitutionally coercive).

[22] Idaho Constitution, Art. XVIII (County Organization), §§ 1-12, including § 5 (uniform system of county government), § 6 (county officers) and § 10 (three-member board of county commissioners).

[23] Idaho Constitution, Art. VII, § 9 (state-purpose rate not to exceed ten mills absent a vote); Idaho Code § 63-802 (limitation on budget requests and tax charges); Idaho Secretary of State, Initiative History (1992 and 1996 one-percent initiatives defeated).

[24] Idaho Code § 67-6501 et seq. (Land Use Planning Act).

[25] Covington v. Jefferson County, 137 Idaho 777 (2002); Moon v. North Idaho Farmers Ass'n, 140 Idaho 536 (2004).

[26] Idaho Constitution, Art. III, § 1 (reserving to the people the power of initiative and referendum "under such conditions and in such manner as may be provided by acts of the legislature"); Art. XII, § 2 (local police regulations "not in conflict with its charter or with the general laws").

[27] Idaho Constitution, Art. I, § 11; Idaho Code § 18-3302J (preemption of firearms regulation).

Key Constitutional Sources

  • Idaho Constitution, Art. I (Declaration of Rights)
  • Idaho Constitution, Art. III, § 1 (Initiative and Referendum)
  • Idaho Constitution, Art. VII (Finance)
  • Idaho Constitution, Art. XVIII (County Organization)
  • U.S. Constitution, Amendment I (Freedom of Speech, Religion, Assembly)
  • U.S. Constitution, Amendment II (Right to Keep and Bear Arms)
  • U.S. Constitution, Amendment IV (Search and Seizure)
  • U.S. Constitution, Amendment V (Due Process)
  • U.S. Constitution, Amendment X (Reserved Powers)
  • U.S. Constitution, Amendment XIV (Due Process and Equal Protection)
  • U.S. Constitution, Art. VI, Cl. 2 (Supremacy Clause)
  • Printz v. United States, 521 U.S. 898 (1997)
  • New York v. United States, 505 U.S. 144 (1992)
  • Murphy v. NCAA, 584 U.S. 453 (2018)
  • NFIB v. Sebelius, 567 U.S. 519 (2012)
  • South Dakota v. Dole, 483 U.S. 203 (1987)
  • Moon v. North Idaho Farmers Ass'n, 140 Idaho 536 (2004)
  • Covington v. Jefferson County, 137 Idaho 777 (2002)
  • Idaho Code § 67-6501 et seq. (Land Use Planning Act)

Pictures, Numbers and Infographics

Idaho voters have changed the limits on their governments many times, by amending the constitution and by passing laws on their own through the initiative. The vote counts below come from the Secretary of State's ballot history, and the diagram sets out which law controls when two of them conflict.

Color postcard of the domed Idaho State Capitol with its two side wings
The Idaho State Capitol in Boise on a postcard from about 1930, after the second building phase added the east and west wings in 1920. Each constitutional amendment in the list below started in this building as a joint resolution of the legislature (HJR or SJR) before it went to voters. Credit: unidentified photographer, Alaska, Western Canada and United States Collection, University of Washington Libraries Special Collections. Public domain, via Wikimedia Commons.

By the numbers

Which law controls Each level must give way to every level above it U.S. Constitution Article VI: the supreme law of the land Federal laws and treaties Made under the U.S. Constitution Idaho Constitution Article I rights; Article XVIII county offices Idaho Code County powers granted by the legislature County ordinances and resolutions Valid only within powers granted above
The order of authority a county official works under, as laid out in this module. Narrower boxes have narrower power. Sources: U.S. Constitution, Article VI; Idaho Constitution.
Three votes on property tax limits Yes share for statewide property tax initiatives 58.3% 1978 34.5% 1992 37.1% 1996 50%
The 1978 initiative restricted the government's power to change valuations or taxes and passed (green). The 1992 and 1996 measures would have capped property taxes at 1% of value and failed (orange). Source: Idaho Secretary of State, Initiative History.