Calhoun County, Texas
County seat: Port Lavaca · Population 19,599 (2025) · 507 sq mi
Calhoun County is the 126th most populous of Texas's 254 counties, with 19,599 people (2025 estimate). Its county seat is Port Lavaca. It is part of the Alamo region, one of the 12 Texas Comptroller economic regions. The map shows its 3 cities and towns and the 5 neighboring counties.
Calhoun County facts
- County seat
- Port Lavaca
- Population (2025 estimate)
- 19,599 −2.5% since 2020
- Land area
- 507 sq mi 238th largest of 254
- Water area
- 526 sq mi
- Population density
- 39 per sq mi
- Established
- 1846
- Named after
- John C. Calhoun vice president of the United States from 1825 to 1832 (1782–1850)
- Largest city
- Port Lavaca 11,060
- Median household income
- $79,959
- Cities and towns
- 3 plus 3 CDPs
- ZIP codes
- 6
- Time zone
- Central
- FIPS code
- 48057
Cities and towns in Calhoun County
Calhoun County has 3 incorporated cities, towns and villages. Populations count the people living inside Calhoun County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Port Lavaca (county seat) | City | 11,060 | |
| Seadrift | City | 1,031 | |
| Point Comfort | City | 548 |
Unincorporated communities (CDPs)
Census-designated places are communities without their own city government; the county provides their services.
| Community | Population | Also in |
|---|---|---|
| Port O'Connor | 620 | |
| Magnolia Beach | 97 | |
| Alamo Beach | 90 |
ZIP codes in Calhoun County
6 ZIP codes reach into Calhoun County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 77465 also Matagorda and Jackson counties
- 77978
- 77979 also Victoria and Jackson counties
- 77982
- 77983
- 77990 also Refugio County
Population of Calhoun County, 2020–2025
Calhoun County shrank by 505 people (−2.5%) between April 2020 and July 2025: 172 more deaths than births and a net loss of 293 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 20,064 |
| 2021 | 19,802 |
| 2022 | 19,709 |
| 2023 | 19,731 |
| 2024 | 19,778 |
| 2025 | 19,599 |
Neighboring counties
- Victoria County northwest · 92,656 people
- Jackson County north · 15,393 people
- Matagorda County northeast · 36,463 people
- Refugio County west · 6,657 people
- Aransas County southwest · 26,146 people
Printable Calhoun 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) (150 KB)
- PNG (2400 px) (118 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.