Boundary Atlas

Oklahoma: cities, counties, ZIP codes and districts

Oklahoma has 5 congressional districts, 48 state senate districts and 101 state house districts under the maps in force for November 3, 2026, plus 1,984 voting precincts, 77 counties, 846 cities, towns and Census-designated places, and 664 ZIP codes.

Cities and towns

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

Congressional districts (2026)

DistrictShort2020 population
Oklahoma's 1st congressional districtOK-01791,871
Oklahoma's 2nd congressional districtOK-02791,871
Oklahoma's 3rd congressional districtOK-03791,871
Oklahoma's 4th congressional districtOK-04791,870
Oklahoma's 5th congressional districtOK-05791,870

ZIP codes in Oklahoma

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 Oklahoma. 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="OK")