Boundary Atlas

Wyoming: cities, counties, ZIP codes and districts

Wyoming has 1 congressional district, 31 state senate districts and 62 state house districts under the maps in force for November 3, 2026, plus 480 voting precincts, 23 counties, 205 cities, towns and Census-designated places, and 179 ZIP codes.

Cities and towns

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

Congressional districts (2026)

DistrictShort2020 population
Wyoming's at-large congressional districtWY-AL576,851

ZIP codes in Wyoming

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 Wyoming. 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="WY")