Boundary Atlas

ZIP code 77375: Harris County, TX

ZIP code 77375 is in Tomball (18% of residents), The Woodlands (9.6%) and Houston (2.4%), in Harris County, Texas. 70% of its residents live outside city limits. It is in Texas's 38th congressional district (90%) and Texas's 2nd congressional district (9.7%). Its state senate district is State Senate District 7; its state house districts are State House District 150 (44%), State House District 130 (33%) and State House District 126 (23%).

65,365residents (2020 Census)
35.2 sq miland area
3cities and towns
2congressional districts
16voting precincts

See it on the mapAll of Texas

City and county

City or townShare of ZIP residents
Tomball18%
The Woodlands9.6%
Houston2.4%

CountyShare of ZIP residents
Harris County100%

Town or county subdivisionShare of ZIP residents
Northwest Harris CCD100%

Congressional districts

Congressional districtShare of ZIP residents
Texas's 38th congressional district (TX-38)90%
Texas's 2nd congressional district (TX-02)9.7%

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 7100%

State house districtShare of ZIP residents
State House District 15044%
State House District 13033%
State House District 12623%

Voting precincts

16 voting precincts overlap ZIP 77375. 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:77375")

ZIP 77375 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.