Boundary Atlas

ZIP code 76577: Thorndale, TX

ZIP code 76577 is in Thorndale (39% of residents), in Milam County (94%) and Williamson County (5.9%), Texas. 61% of its residents live outside city limits. It is in Texas's 17th congressional district (99%) and Texas's 31st congressional district (1.3%). Its state senate district is State Senate District 5; its state house districts are State House District 17 (94%) and State House District 52 (5.9%).

3,262residents (2020 Census)
140.0 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
Thorndale39%

CountyShare of ZIP residents
Milam County94%
Williamson County5.9%

Town or county subdivisionShare of ZIP residents
Thorndale CCD80%
Davilla CCD14%
Taylor CCD5.9%

Congressional districts

Congressional districtShare of ZIP residents
Texas's 17th congressional district (TX-17)99%
Texas's 31st congressional district (TX-31)1.3%

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 5100%

State house districtShare of ZIP residents
State House District 1794%
State House District 525.9%

Voting precincts

5 voting precincts overlap ZIP 76577. 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:76577")

ZIP 76577 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.