Boundary Atlas

ZIP code 77433: Harris County, TX

ZIP code 77433 is in Houston (1.9% of residents), in Harris County, Texas. 98% of its residents live outside city limits. It is in Texas's 38th congressional district (67%) and Texas's 8th congressional district (33%). Its state senate districts are State Senate District 18 (69%) and State Senate District 7 (31%); its state house districts are State House District 132 (49%), State House District 135 (26%) and State House District 130 (24%).

106,663residents (2020 Census)
59.0 sq miland area
1cities and towns
2congressional districts
28voting precincts

See it on the mapAll of Texas

City and county

City or townShare of ZIP residents
Houston1.9%

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)67%
Texas's 8th congressional district (TX-08)33%

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 1869%
State Senate District 731%

State house districtShare of ZIP residents
State House District 13249%
State House District 13526%
State House District 13024%

Voting precincts

28 voting precincts overlap ZIP 77433. 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:77433")

ZIP 77433 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.