Arizona voting districts come in two main types that determine your ballot: nine congressional districts that each send one representative to the U.S. House, and thirty legislative districts that each send one state senator and two state representatives to the Arizona Legislature. To find yours, enter your address at my.arizona.vote and the state’s voter registration portal returns your district numbers, polling place, and registration status.
Looking Up Your Districts
The fastest route is the Secretary of State’s voter portal at my.arizona.vote. One address lookup gives you your congressional district, your legislative district, your polling location, and confirmation that your registration is active.1Arizona Secretary of State. Independent Redistricting Commission
If you want to see the actual boundary lines rather than just a district number, the Arizona Independent Redistricting Commission runs an interactive mapping hub where you can switch between congressional and legislative views and zoom to street level.2Arizona Redistricting Hub. Official Maps The Citizens Clean Elections Commission offers its own district locator alongside candidate statements and election deadlines.
Your county recorder’s office is a third option, and it’s the one to use if you’ve recently moved. A new address can change not only your precinct but your congressional and legislative districts along with it, so check your registration before election day rather than at the polling place.
Congressional Districts
Arizona has nine congressional districts, and each one elects a single member of the U.S. House of Representatives. The state kept its nine seats after the 2020 Census, though the lines shifted to reflect population movement within Arizona. Every congressional district contains roughly the same number of people so that each representative serves a comparable share of the state.
Legislative Districts
Arizona’s thirty legislative districts work differently. Each one elects three state legislators: one senator and two members of the House of Representatives. That produces a 30-member Senate and a 60-member House.3Citizens Clean Elections Commission. About the State Senate So your single legislative district gives you three people at the state capitol, all accountable to the same community. Legislative districts are smaller than congressional districts, which is why one legislative district fits entirely inside a congressional district rather than the other way around.
Voting Precincts
Precincts are a smaller layer of geography that often gets mixed up with districts. Your county board of supervisors creates and maintains them, and they exist to organize polling places and report results. State law requires every precinct to sit entirely inside a single congressional district, legislative district, supervisorial district, and community college district. A precinct cannot straddle two districts of the same type, which is what guarantees everyone in the precinct receives the same ballot.4Arizona Legislature. Arizona Revised Statutes 16-411 – Designation of Election Precincts and Polling Places
County boards must finalize precinct boundaries by October 1 of the year before a general election, and they sometimes have to adjust those boundaries after the redistricting commission issues new district maps. Precincts also function as the base unit of political party organization: each precinct can elect precinct committeemen, the most local tier of party leadership, and the number allotted to each party in a precinct depends on how many of that party’s voters are registered there.
Special Taxing Districts on Your Ballot
Beyond congressional and legislative lines, your ballot may include races for special taxing districts. These are local government bodies created under Arizona Revised Statutes Title 48 to deliver one specific service — fire protection, water, parks, or libraries, among others. Each has its own geographic boundary, an elected board, and the authority to levy property taxes. Their boundaries do not follow the ten-year redistricting cycle, and they are drawn separately from the work of the redistricting commission. If you live inside one, its board election shows up on your ballot alongside state and federal races.
Who Draws the Lines and How Often
Both congressional and legislative districts are drawn by the Arizona Independent Redistricting Commission, a five-member panel that operates independently of the state legislature.5Arizona Legislature. Arizona Constitution Article 4 Part 2 Section 1 Voters created the commission by passing Proposition 106 in 2000, which amended Article IV, Part 2 of the state constitution.6Arizona Secretary of State. Proposition 106 Before that, the legislature drew its own maps.
The commission has four partisan members (two from each of the state’s two largest parties) chosen by legislative leaders from a pool prepared by the Commission on Appellate Court Appointments, plus an independent chair selected by those four. The whole commission must be seated by February 28 of the first year of each decade, and it works with fresh Census data to produce new maps.5Arizona Legislature. Arizona Constitution Article 4 Part 2 Section 1
Redistricting happens every ten years, so the current maps were drawn in 2021 and 2022 using 2020 Census data and will remain in effect for the rest of the decade.7Citizens Clean Elections Commission. Redistricting The commission takes public comment during the process, with a comment period of at least 30 days on draft maps, and posts meeting agendas on its website and at its Phoenix office.8Arizona Independent Redistricting Commission. Home Once maps are finalized, counties load them into the statewide voter registration system and align their precinct maps to match before the next election cycle.1Arizona Secretary of State. Independent Redistricting Commission That is why your district numbers can change between elections even if you have not moved — and why checking your registration after any boundary update, or after a move of your own, is worth a minute of your time.