Duval County, Texas
County seat: San Diego · Population 9,402 (2025) · 1,794 sq mi
Duval County is the 169th most populous of Texas's 254 counties, with 9,402 people (2025 estimate). Its county seat is San Diego. It is part of the South Texas region, one of the 12 Texas Comptroller economic regions. The map shows its 3 cities and towns and the 7 neighboring counties.
Duval County facts
- County seat
- San Diego
- Population (2025 estimate)
- 9,402 −4.4% since 2020
- Land area
- 1,794 sq mi 13th largest of 254
- Water area
- 2 sq mi
- Population density
- 5 per sq mi
- Established
- 1858
- Named after
- Burr H. Duval American commander
- Largest city
- San Diego 2,760 in the county
- Median household income
- $49,038
- Cities and towns
- 3 plus 2 CDPs
- ZIP codes
- 8
- Time zone
- Central
- FIPS code
- 48131
Cities and towns in Duval County
Duval County has 3 incorporated cities, towns and villages. Populations count the people living inside Duval County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| San Diego (county seat) | City | 2,760 | Jim Wells County |
| Freer | City | 2,308 | |
| Benavides | City | 1,099 |
Unincorporated communities (CDPs)
Census-designated places are communities without their own city government; the county provides their services.
| Community | Population | Also in |
|---|---|---|
| Realitos | 32 | |
| Concepcion | 16 |
ZIP codes in Duval County
8 ZIP codes reach into Duval County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 78332 also Jim Wells County
- 78341
- 78349
- 78357
- 78361 also Jim Hogg and Zapata counties
- 78372 also Jim Wells and Live Oak counties
- 78376
- 78384 also Jim Wells County
Population of Duval County, 2020–2025
Duval County shrank by 428 people (−4.4%) between April 2020 and July 2025: 151 more deaths than births and a net loss of 275 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 9,811 |
| 2021 | 10,028 |
| 2022 | 9,698 |
| 2023 | 9,648 |
| 2024 | 9,652 |
| 2025 | 9,402 |
Neighboring counties
- Jim Wells County east · 38,804 people
- Webb County west · 281,224 people
- McMullen County north · 544 people
- Jim Hogg County south · 4,555 people
- Brooks County south · 6,579 people
- Live Oak County northeast · 11,929 people
- La Salle County northwest · 6,517 people
Printable Duval County map
The PDF is a vector file with real text: it prints sharp on Letter paper and you can search it for a town. The PNG is 2400 pixels wide for slides and documents. Both are free to use with a credit to WhichCounty.
- PDF (Letter) (134 KB)
- PNG (2400 px) (68 KB)
Paste this code to embed the map on your site:
Sources
- Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files (1:500,000).
- Population: Census Bureau county and city estimates, Vintage 2025. CDP populations: American Community Survey 2020–2024.
- Places and ZIP codes: Census Bureau 2026 Gazetteer and 2020 ZIP Code Tabulation Area relationship files.
- County seat, founding year and name origin: Wikidata (CC0), checked against state sources.
Back to the Texas county map with all 254 counties. Found an error? Tell us.