ZIP code 78039: LaCoste, TX
ZIP code 78039 is in LaCoste (60% of residents), in Medina County (87%) and Bexar County (13%), Texas. 40% of its residents live outside city limits. It is in Texas's 23rd congressional district (93%) and Texas's 35th congressional district (7.3%). Its state senate districts are State Senate District 24 (87%) and State Senate District 19 (13%); its state house districts are State House District 53 (87%) and State House District 118 (13%).
City and county
| City or town | Share of ZIP residents |
|---|---|
| LaCoste | 60% |
| County | Share of ZIP residents |
|---|---|
| Medina County | 87% |
| Bexar County | 13% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Castroville-LaCoste CCD | 87% |
| San Antonio West CCD | 13% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Texas's 23rd congressional district (TX-23) | 93% |
| Texas's 35th congressional district (TX-35) | 7.3% |
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.
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (TX-35) | Greg Casar (D) | 202-225-5645 | 7.3% |
| 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 | 87% |
| State Senator (State Senate District 19) | Roland Gutierrez (Democratic) | 830-278-1234 | 13% |
| State Representative (State House District 53) | Wes Virdell (R) | 830-730-5925 | 87% |
| State Representative (State House District 118) | John Lujan (R) | 210-595-0068 | 13% |
| U.S. Representative (TX-23) | Vacant |
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
- LaCoste laws: search for the LaCoste, Texas code of ordinances
- Medina County website: https://www.medinatx.gov/
- Medina County laws: search for the Medina County, Texas code of ordinances
- Bexar County website: https://bexar.gov
- Bexar County laws: search for the Bexar County, Texas code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 24 | 87% |
| State Senate District 19 | 13% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 53 | 87% |
| State House District 118 | 13% |
Voting precincts
3 voting precincts overlap ZIP 78039. 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:78039")
ZIP 78039 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.