Boundary Atlas

ZIP code 78377: Refugio, TX

ZIP code 78377 is in Refugio (76% of residents), in Refugio County, Texas. 24% of its residents live outside city limits. It is in Texas's 15th congressional district. Its state senate district is State Senate District 18; its state house district is State House District 43.

3,547residents (2020 Census)
480.6 sq miland area
1cities and towns
1congressional district
6voting precincts

See it on the mapAll of Texas

City and county

City or townShare of ZIP residents
Refugio76%

CountyShare of ZIP residents
Refugio County100%

Town or county subdivisionShare of ZIP residents
Refugio CCD98%
Austwell-Tivoli CCD2.1%
Woodsboro CCD<0.1%

Congressional district

Congressional districtShare of ZIP residents
Texas's 15th congressional district (TX-15)100%

State legislative districts

State senate districtShare of ZIP residents
State Senate District 18100%

State house districtShare of ZIP residents
State House District 43100%

Voting precincts

6 voting precincts overlap ZIP 78377. 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:78377")

ZIP 78377 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.