Boundary Atlas

ZIP code 78014: Cotulla, TX

ZIP code 78014 is in Cotulla (73% of residents), in La Salle County (100%) and Dimmit County (0.2%), Texas. 27% of its residents live outside city limits. It is in Texas's 28th congressional district. Its state senate district is State Senate District 21; its state house districts are State House District 31 (100%) and State House District 80 (0.2%).

5,078residents (2020 Census)
874.9 sq miland area
1cities and towns
1congressional district
6voting precincts

See it on the mapAll of Texas

City and county

City or townShare of ZIP residents
Cotulla73%

CountyShare of ZIP residents
La Salle County100%
Dimmit County0.2%

Town or county subdivisionShare of ZIP residents
Cotulla CCD100%
Asherton CCD0.2%

Congressional district

Congressional districtShare of ZIP residents
Texas's 28th congressional district (TX-28)100%

State legislative districts

State senate districtShare of ZIP residents
State Senate District 21100%

State house districtShare of ZIP residents
State House District 31100%
State House District 800.2%

Voting precincts

6 voting precincts overlap ZIP 78014. Map them, with each precinct's share of the ZIP's residents.

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Your agent can get these cities, counties, districts and precincts with their shares, and their GeoJSON boundaries, from Boundary Atlas. Add https://atlas-production-d344.up.railway.app/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:

related_geographies(id="us:zcta:78014")

ZIP 78014 here is the Census Bureau's ZIP Code Tabulation Area, which approximates the USPS ZIP Code; PO-box-only ZIPs have none. Districts are the maps in force for the November 3, 2026 election.