Eligibility and Residency

Eligibility looks like the easy part of running. You are an adult, a citizen, you live in town. But the rules differ seat by seat, they use legal words like "elector" and "residence" that mean something specific, and a mistake does not show up until someone files a challenge, usually after the filing window has closed. This lesson goes office by office, then through the places candidates most often get tripped up: where they legally live, challenges, criminal records, and jobs.

The baseline: qualified elector

Most local office statutes do not list their own age and citizenship rules. They say the candidate must be a "qualified elector" or an "elector" of the district, and borrow the definition.

The Idaho Constitution, Article VI, Section 2 defines a qualified elector as a U.S. citizen, 18 years old, who has lived in the state and county for the period the law sets, and who is registered. Since the 2024 general election it also says, in plain terms, that no person who is not a citizen of the United States shall be a qualified elector in any election held in Idaho. The Legislature sent that sentence to voters as House Joint Resolution 5 in 2024. Idaho Code 34-402 sets the residency period at 30 days in the state and county.

Cities have their own version. Idaho Code 50-402(c) defines a city qualified elector as an 18-year-old citizen who has lived in the city at least 30 days before the election and is registered. So a mayoral or council candidate who moved to town 45 days before filing and registered can run, as long as the declaration is filed after the 30 days have passed.

Qualifications by office

Here is what the statutes say for each kind of seat. Where a statute requires "elector" status, the 18, citizen and 30-day baseline comes along with it.

Office	Age	Residency	Other requirements	Statute
County commissioner	21 at election	1 year in county before the election; 90 days in the commissioner district before the primary	U.S. citizen	34-617
Sheriff	21	1 year in county	Citizen. First-time sheriffs complete a POST tutorial (unless already certified as a chief, peace officer or detention deputy) and attend the newly elected sheriffs' school	34-618
Clerk, treasurer, assessor	21	1 year in county	Citizen. The election sections list no license	34-619, 34-620, 34-621
Coroner	21	1 year in county	Citizen. Coroner's school within one year of taking office, then 24 hours of continuing education every two years (31-2810)	34-622
Prosecuting attorney	21	Qualified elector of the county	Citizen, admitted to practice law in Idaho	34-623
Mayor	18 (elector)	Qualified elector of the city when the declaration is filed, and throughout the term	None listed	50-601
City council	18 (elector)	Same as mayor; in district cities, must live in the district	None listed	50-702, 50-707A
School trustee	18 (elector)	Elector of the school district and resident of the trustee zone at nomination and election	None listed	33-501
Highway district commissioner	21 at election	Resident of the subdistrict	Citizen. In a countywide district under 40-1404A, county commissioners, mayors and council members are ineligible	40-1305C, 34-625
Fire commissioner	18 (elector)	Elector residing in the fire district at least 1 year and in the subdistrict at least 90 consecutive days	None listed	31-1409
Library trustee	18 (elector)	Qualified elector of the district; resident of the zone if zones exist	None listed	33-2715
Cemetery commissioner	18 (elector)	Elector of the subdistrict at declaration and during the term (unless elected at large)	None listed	27-111
Recreation director	18 (elector)	Qualified elector and resident of the district	None listed	31-4305
Hospital trustee	18 (elector)	Resident of the district, qualified Idaho elector	May not work for, own or invest in another ambulatory surgery center, hospital or health system	39-1326
Soil and water supervisor	18 (registered voter)	Landowner or farmer in the district	Registered to vote in Idaho	22-2721
Irrigation director	18 (elector)	Qualified elector and resident of the division; bylaws may allow a landowner within 15 miles, and small districts may allow a landowner from the county or an adjoining county	Owns land in the district (nominee's oath lists it)	43-201

The county commissioner rule has two clocks. One year in the county runs to the general election. Ninety days in the district runs to the primary, which comes six months earlier. The Secretary of State's How to Run for Office page summarizes the district rule as 90 days "prior to the election"; the statute itself says "next preceding the primary election," and the statute controls. The fire district rule is the longest residency requirement for a special district seat: a full year in the district and 90 consecutive days in the subdistrict.

School trustees have a useful protection. Under 33-501(2), if redrawn zone lines put a sitting trustee outside the zone, the trustee may finish the term as long as the trustee still lives at the address used when elected.

What "residence" means

Idaho Code 34-107 defines residence for voting purposes as a person's principal or primary home, the place where "habitation is fixed" and to which the person intends to return when away. Going somewhere for a temporary purpose does not create a new residence, and leaving for a temporary purpose does not lose the old one. The constitution adds that people do not gain or lose residence while serving in state or federal service, while students, or while kept at a public institution (Article VI, Section 5).

A 2022 amendment added a bright-line rule. If you claim a homeowner's exemption under Idaho Code 63-602G, the homestead for which you claim it "shall be" your residence for voting purposes. If you claim no exemption, the clerk may look at the usual signs: where you work, where your income and tax filings point, where your spouse and children live, your leases, your property and your vehicle registration.

The same 2022 law changed the declaration of candidacy. Under Idaho Code 34-701(3), the Secretary of State's form includes a sworn verification that the candidate meets the legal qualifications, and every candidate must disclose whether they have claimed the homeowner's exemption and the address of any such homestead, for themselves and a spouse. A candidate who claims the exemption on a house outside the district has, on the face of the declaration, told the clerk they live outside the district.

Challenges: how disputes get decided

Idaho added a formal challenge process in 2022. Idaho Code 34-219 says that on the request of a registered voter, the Secretary of State or a county clerk "shall investigate" a candidate's legal qualifications and "shall exclude from the ballot" a candidate who does not meet them. The filing officer may set a deadline for requests, but no earlier than 14 days after the candidate filing deadline. A person excluded may challenge that in the district court for the county where the person's voting residence is. Government offices must hand the clerk information needed to check qualifications.

The Secretary of State's 2027 calendar sets the request deadlines for local races at March 26, 2027 for the May election and September 10, 2027 for the November election. A few points follow from the text:

• Any registered voter may ask. It does not have to be an opponent.
• The clerk decides first. The clerk does not need a court order to remove a name.
• The candidate's remedy is in district court, and it has to move fast because ballots are printed and mailed weeks before election day.
• After the election, a different process applies: an election contest in court under Title 34, chapter 20 (the calendar sets a deadline of 20 days after the canvass).

Criminal records

The constitution draws the line. Article VI, Section 3 says no person may vote, serve on a jury or hold any civil office who has been convicted of a felony anywhere and "has not been restored to the rights of citizenship," or who is confined in prison at the time of the election on a criminal conviction.

Idaho Code 18-310 supplies the restoration rule. A sentence to state prison custody suspends civil rights and forfeits public offices during imprisonment. People on parole or probation may exercise civil rights that are "not political." On final discharge, meaning completion of imprisonment, probation and parole, a person convicted of an Idaho felony is restored the full rights of citizenship, with firearm rights withheld for a list of serious crimes. So a person whose felony sentence is fully discharged may run for and hold local office. A person still on felony probation or parole may not, because holding office is a political right.

Misdemeanors do not appear in these disqualification rules. Convictions in other states and federal courts raise questions about how restoration works under that jurisdiction's law; the county clerk is the place to take that question before filing, with paperwork in hand.

Holding two offices

Idaho has no single statute that lists every pair of local offices one person may not hold at once. The limits come from several places.

• Specific statutes. Some chapters spell out a bar. Under 40-1404A, a county commissioner, mayor or city council member is not eligible to serve as a countywide highway district commissioner. Under 39-1326, a hospital district trustee may not work for or own part of a competing hospital or health system. Under 50-410(2), a person may not file for more than one office in the same city election.
• Residency rules that overlap. A trustee of one school zone cannot move to run in another without losing the first seat, because the first seat requires living in its zone.
• The incompatibility doctrine. Where no statute speaks, courts and attorneys general across the country ask whether one office supervises, audits, sets the budget of, or contracts with the other. If so, the two are treated as incompatible and taking the second usually vacates the first. That is the question to put to yourself in Idaho too whenever no statute settles it. A city council member who wants to serve on a fire district board that contracts with the city is the kind of case to raise with the county clerk and the district before filing.

Public employees who run

The federal Hatch Act. For state and local workers, the Hatch Act lives at 5 U.S.C. 1501 to 1508. It covers state and local executive branch employees whose principal job is in an activity financed in whole or part by federal loans or grants, but it excludes employees of educational or research institutions supported by a state or political subdivision. Since the 2012 amendments, the candidacy bar in 1502(a)(3) applies only if the employee's salary is "paid completely, directly or indirectly" by federal loans or grants. And under 5 U.S.C. 1503, the bar does not apply to nonpartisan elections at all. In Idaho, that means most covered workers can run for city council, school board or a district board, which are nonpartisan, and the Hatch Act question arises mainly for a partisan county seat. Every covered employee, candidate or not, remains barred from using official authority to affect an election and from coercing coworkers to give.

Idaho state employees. Idaho Code 67-5311 says state employees covered by the personnel system may not be a candidate and hold elective office in any partisan election, but expressly keeps their right to be a candidate and hold office in a nonpartisan election and to take part in campaigns on their own time.

Local employees. Counties, cities and school districts set their own personnel policies on leave, campaigning at work and use of equipment. Read yours. The conflict-of-interest rules in the Ethics in Government Act apply once you are elected (see lesson 8), and the Secretary of State's guidance on public resources in campaigns is covered in the lobbying, gifts and officials lesson of course 46.

School employees and their own board. The trustee chapter's conflict section, 33-507, bars trustees from having a financial interest in district contracts and sets detailed rules for employing a trustee's spouse and relatives, including enrollment thresholds and abstention. It does not expressly address a current district employee serving as trustee, though subsection (1), which bars a trustee from any pecuniary interest in a contract pertaining to the district, is the provision that question would turn on. A teacher thinking about running for the board of the district that employs them should get the district's written answer, and the Idaho School Boards Association's, before filing, because every vote on salaries, contracts and the budget would touch the candidate's own pay.