County Maps US

Calhoun County, Texas

A county in Texas, ranked 126 of 254 by population.

CountyFIPS 48057

Within Texas
Calhoun County, highlighted, with the areas around it. Boundaries generalised from the 2025 Census cartographic boundary file; neighbour fills carry no data. The dot marks Port Lavaca, the county seat, located via the 2025 Census Gazetteer.

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Population
19,599
-465 (-2.3%) since 2020
Land area
506.9
square miles. A further 50.9% of the total area is water
Population density
38.7
people per square mile, computed rather than published
County seat
Port Lavaca
Seat of county government.
Established
1846
179 years ago
Largest city
Port Lavaca city
Population 11,060.

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; Wikidata (CC0), Wikidata. Retrieved 30 August 2026.

Satellite view

Aerial imagery of Calhoun County with its boundary drawn on top. A map shows you the shape; this shows you what is inside it, and which side of the line a place falls on.

Aerial view of Calhoun County, Texas from the USGS National Map, with its boundary outlined
Imagery: USGS National Map, USGS Imagery Only, public domain, requested from USGS by your browser when you reach this point on the page, at 656 by 800 pixels. The boundary is the 2025 Census cartographic boundary file, reprojected to Web Mercator to match the imagery. You can also open the USGS National Map viewer.

Where Calhoun County ranks

Position among the 254 counties of Texas, and among all 3,144 US counties and county-equivalents. Computed from the figures on this page.

MeasureValueIn TexasNationally
Population19,599126th of 2541,853rd of 3,144
Land area506.9 sq mi238th of 2542,049th of 3,144
Population density38.7 per sq mi94th of 2541,701st of 3,144
Median household income$79,95937th of 254587th of 3,143

Full data for Calhoun County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population19,599Vintage 2025 Population Estimates
Population in 202020,064Vintage 2025 Population Estimates
2020 estimates base?20,104Vintage 2025 Population Estimates
Land area506.9 sq mi2025 Gazetteer Files
Water area525.7 sq mi2025 Gazetteer Files
Total area1,033 sq mi2025 Gazetteer Files
Population density?38.7 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$79,959American Community Survey 2020-2024 5-Year Estimates
Median home value$171,200American Community Survey 2020-2024 5-Year Estimates
Median age41.4American Community Survey 2020-2024 5-Year Estimates
Households8,670American Community Survey 2020-2024 5-Year Estimates
Housing units10,833American Community Survey 2020-2024 5-Year Estimates

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; US Census Bureau, American Community Survey, American Community Survey 2020-2024 5-Year Estimates, released 29 January 2026. Population density is computed here, not published: it divides the Vintage 2025 population estimate by the 2025 Gazetteer land area, which are two different Census products. Retrieved 30 August 2026.

How the population changed

The Census Bureau publishes the components behind an estimate, not just the total. For the year to July 2025:

Births minus deaths
-49
215 births, 264 deaths
Net migration
-130
More people moved out than moved in.

Source: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026. Retrieved 30 August 2026.

The 5 areas bordering Calhoun County

Ordered by the length of the border actually shared, which the Census Bureau publishes in its county adjacency file and which no other county reference presents.

Bordering areaStateShared borderPopulation
Victoria CountyTexas29 mi92,656
Jackson CountyTexas29 mi15,393
Matagorda CountyTexas28 mi36,463
Refugio CountyTexas24 mi6,657
Aransas CountyTexas22 mi26,146

Source: US Census Bureau, County Adjacency File, 2025 County Adjacency File, released 15 September 2025. Retrieved 30 August 2026.

All 254 counties of Texas

Open the interactive Texas county map, or jump straight to any of them.

Data on this page last rebuilt 30 August 2026. How these figures are produced.