Boundary Atlas

Texas: cities, counties, ZIP codes and districts

Texas has 38 congressional districts, 31 state senate districts and 150 state house districts under the maps in force for November 3, 2026, plus 9,614 voting precincts, 254 counties, 1,863 cities, towns and Census-designated places, and 1,990 ZIP codes.

Cities and towns

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

Congressional districts (2026)

DistrictShort2020 population
Texas's 1st congressional districtTX-01766,987
Texas's 2nd congressional districtTX-02766,987
Texas's 3rd congressional districtTX-03766,987
Texas's 4th congressional districtTX-04766,987
Texas's 5th congressional districtTX-05766,987
Texas's 6th congressional districtTX-06766,987
Texas's 7th congressional districtTX-07766,987
Texas's 8th congressional districtTX-08766,987
Texas's 9th congressional districtTX-09766,987
Texas's 10th congressional districtTX-10766,987
Texas's 11th congressional districtTX-11766,987
Texas's 12th congressional districtTX-12766,987
Texas's 13th congressional districtTX-13766,987
Texas's 14th congressional districtTX-14766,987
Texas's 15th congressional districtTX-15766,987
Texas's 16th congressional districtTX-16766,987
Texas's 17th congressional districtTX-17766,987
Texas's 18th congressional districtTX-18766,987
Texas's 19th congressional districtTX-19766,987
Texas's 20th congressional districtTX-20766,987
Texas's 21st congressional districtTX-21766,987
Texas's 22nd congressional districtTX-22766,987
Texas's 23rd congressional districtTX-23766,987
Texas's 24th congressional districtTX-24766,987
Texas's 25th congressional districtTX-25766,987
Texas's 26th congressional districtTX-26766,987
Texas's 27th congressional districtTX-27766,987
Texas's 28th congressional districtTX-28766,987
Texas's 29th congressional districtTX-29766,987
Texas's 30th congressional districtTX-30766,987
Texas's 31st congressional districtTX-31766,987
Texas's 32nd congressional districtTX-32766,987
Texas's 33rd congressional districtTX-33766,987
Texas's 34th congressional districtTX-34766,987
Texas's 35th congressional districtTX-35766,987
Texas's 36th congressional districtTX-36766,987
Texas's 37th congressional districtTX-37766,987
Texas's 38th congressional districtTX-38766,986

ZIP codes in Texas

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 Texas. 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="TX")