ZIP code 78122: Gonzales County, TX
ZIP code 78122 is in Gonzales County, Texas, outside any city or Census-designated place. 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 44.
City and county
Outside any city or Census-designated place.
| County | Share of ZIP residents |
|---|---|
| Gonzales County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Nixon CCD | 100% |
Congressional district
| Congressional district | Share of ZIP residents |
|---|---|
| Texas's 15th congressional district (TX-15) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (TX-15) | Monica De La Cruz (R) | 202-225-9901 | 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 18) | Lois Kolkhorst (R) | 361-573-7300 | 100% |
| State Representative (State House District 44) | Alan Schoolcraft (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
- Gonzales County website: https://www.co.gonzales.tx.us/
- Gonzales County laws: search for the Gonzales County, Texas code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 18 | 100% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 44 | 100% |
Voting precincts
2 voting precincts overlap ZIP 78122. 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:78122")
ZIP 78122 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.