ZIP code 78839: Crystal City, TX
ZIP code 78839 is in Crystal City (86% of residents), Chula Vista (4.2%), Loma Grande (1.8%) and Amaya (1.5%), in Zavala County (99%) and Dimmit County (0.9%), Texas. 6.2% of its residents live outside city limits. It is in Texas's 23rd congressional district (99%) and Texas's 28th congressional district (0.9%). Its state senate districts are State Senate District 19 (99%) and State Senate District 21 (0.9%); its state house district is State House District 80.
City and county
| City or town | Share of ZIP residents |
|---|---|
| Crystal City | 86% |
| Chula Vista | 4.2% |
| Loma Grande | 1.8% |
| Amaya | 1.5% |
| County | Share of ZIP residents |
|---|---|
| Zavala County | 99% |
| Dimmit County | 0.9% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Crystal City CCD | 99% |
| Carrizo Springs CCD | 0.9% |
| Batesville CCD | 0.3% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Texas's 23rd congressional district (TX-23) | 99% |
| Texas's 28th congressional district (TX-28) | 0.9% |
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-28) | Henry Cuellar (D) | 202-225-1640 | 0.9% |
| 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 19) | Roland Gutierrez (Democratic) | 830-278-1234 | 99% |
| State Senator (State Senate District 21) | Judith Zaffirini (Democratic) | 956-722-2293 | 0.9% |
| State Representative (State House District 80) | Don McLaughlin (R) | 100% | |
| 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
- Crystal City website: http://cityofcrystalcity.com/
- Crystal City laws: search for the Crystal City, Texas code of ordinances
- Chula Vista laws: search for the Chula Vista, Texas code of ordinances
- Loma Grande laws: search for the Loma Grande, Texas code of ordinances
- Zavala County website: https://www.co.zavala.tx.us/
- Zavala County laws: search for the Zavala County, Texas code of ordinances
- Dimmit County website: https://www.dimmitcounty.org/
- Dimmit County laws: search for the Dimmit County, Texas code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 19 | 99% |
| State Senate District 21 | 0.9% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 80 | 100% |
Voting precincts
7 voting precincts overlap ZIP 78839. 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:78839")
ZIP 78839 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.