ZIP code 78675: Gillespie County, TX
ZIP code 78675 is in Gillespie County, Texas, outside any city or Census-designated place. It is in Texas's 21st congressional district. Its state senate district is State Senate District 24; its state house district is State House District 19.
City and county
Outside any city or Census-designated place.
| County | Share of ZIP residents |
|---|---|
| Gillespie County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Stonewall CCD | 100% |
Congressional district
| Congressional district | Share of ZIP residents |
|---|---|
| Texas's 21st congressional district (TX-21) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (TX-21) | Chip Roy (R) | 202-225-4236 | 100% |
| U.S. Senator | John Cornyn (R) | 202-224-2934 · contact form | statewide |
| U.S. Senator | Ted Cruz (R) | 202-224-5922 · contact form | statewide |
| State Senator (State Senate District 24) | Pete Flores (R) | 830-896-9816 | 100% |
| State Representative (State House District 19) | Ellen Troxclair (R) | 100% |
Elected in 2024 under TX's previous congressional map; this district's lines changed for the 120th Congress (seated January 3, 2027).
Officials serving now (members of Congress until January 3, 2027). Sources: State legislators: Open States (public domain); Members of Congress: the @unitedstates project, congress-legislators (CC0).
Local government
- Gillespie County website: https://www.gillespiecounty.gov/
- Gillespie County laws: search for the Gillespie County, Texas code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 24 | 100% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 19 | 100% |
Voting precincts
2 voting precincts overlap ZIP 78675. 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:78675")
ZIP 78675 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.