Boundary Atlas

Utah: cities, counties, ZIP codes and districts

Utah has 4 congressional districts, 29 state senate districts and 75 state house districts under the maps in force for November 3, 2026, plus 3,331 voting precincts, 29 counties, 334 cities, towns and Census-designated places, and 298 ZIP codes.

Cities and towns

Largest first. Each page lists the city's county, districts and ZIP codes.

Congressional districts (2026)

DistrictShort2020 population
Utah's 1st congressional districtUT-01817,904
Utah's 2nd congressional districtUT-02817,904
Utah's 3rd congressional districtUT-03817,904
Utah's 4th congressional districtUT-04817,904

ZIP codes in Utah

Each page lists the ZIP's congressional and legislative districts, with population shares where it's split.

Get this in your AI agent

Your agent can list, look up and map every district and precinct in Utah. Add https://atlas-production-d344.up.railway.app/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:

list_geographies(country="US", level="congressional_district", region="UT")