Boundary Atlas

ZIP code 75409: Anna, TX

ZIP code 75409 is in Anna (79% of residents) and Westminster (4.9%), in Collin County, Texas. 16% of its residents live outside city limits. It is in Texas's 3rd congressional district. Its state senate district is State Senate District 8; its state house districts are State House District 67 (66%) and State House District 61 (34%).

21,292residents (2020 Census)
78.3 sq miland area
2cities and towns
1congressional district
18voting precincts

See it on the mapAll of Texas

City and county

City or townShare of ZIP residents
Anna79%
Westminster4.9%

CountyShare of ZIP residents
Collin County100%

Town or county subdivisionShare of ZIP residents
Anna CCD91%
Blue Ridge CCD8.6%

Congressional district

Congressional districtShare of ZIP residents
Texas's 3rd congressional district (TX-03)100%

State legislative districts

State senate districtShare of ZIP residents
State Senate District 8100%

State house districtShare of ZIP residents
State House District 6766%
State House District 6134%

Voting precincts

18 voting precincts overlap ZIP 75409. 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:75409")

ZIP 75409 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.