Boundary Atlas

ZIP code 78069: Somerset, TX

ZIP code 78069 is in Somerset (30% of residents), in Atascosa County (61%) and Bexar County (39%), Texas. 70% of its residents live outside city limits. It is in Texas's 28th congressional district (61%) and Texas's 35th congressional district (39%). Its state senate districts are State Senate District 24 (59%) and State Senate District 19 (41%); its state house districts are State House District 80 (61%) and State House District 118 (39%).

5,803residents (2020 Census)
28.5 sq miland area
1cities and towns
2congressional districts
5voting precincts

See it on the mapAll of Texas

City and county

City or townShare of ZIP residents
Somerset30%

CountyShare of ZIP residents
Atascosa County61%
Bexar County39%

Town or county subdivisionShare of ZIP residents
Poteet CCD61%
San Antonio South CCD39%

Congressional districts

Congressional districtShare of ZIP residents
Texas's 28th congressional district (TX-28)61%
Texas's 35th congressional district (TX-35)39%

This ZIP is split between districts. A mailing address in it could be in either; the map or locate_point gives the district for an exact address.

State legislative districts

State senate districtShare of ZIP residents
State Senate District 2459%
State Senate District 1941%

State house districtShare of ZIP residents
State House District 8061%
State House District 11839%

Voting precincts

5 voting precincts overlap ZIP 78069. Map them, with each precinct's share of the ZIP's residents.

Get this in your AI agent

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:78069")

ZIP 78069 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.