County Maps US

Caldwell County, Texas

A county in Texas, ranked 67 of 254 by population.

CountyFIPS 48055

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

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Population
55,150
+9,205 (+20.0%) since 2020
Land area
544.5
square miles. A further 0.3% of the total area is water
Population density
101
people per square mile, computed rather than published
County seat
Lockhart
Seat of county government.
Established
1848
177 years ago
Largest city
Lockhart city
Population 18,159.

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 Caldwell 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 Caldwell 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 800 by 708 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 Caldwell 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
Population55,15067th of 254949th of 3,144
Land area544.5 sq mi235th of 2541,916th of 3,144
Population density101 per sq mi51st of 254900th of 3,144
Median household income$69,75885th of 2541,214th of 3,143

Full data for Caldwell County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population55,150Vintage 2025 Population Estimates
Population in 202045,945Vintage 2025 Population Estimates
2020 estimates base?45,882Vintage 2025 Population Estimates
Land area544.5 sq mi2025 Gazetteer Files
Water area1.9 sq mi2025 Gazetteer Files
Total area546.5 sq mi2025 Gazetteer Files
Population density?101 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$69,758American Community Survey 2020-2024 5-Year Estimates
Median home value$240,500American Community Survey 2020-2024 5-Year Estimates
Median age38.4American Community Survey 2020-2024 5-Year Estimates
Households16,647American Community Survey 2020-2024 5-Year Estimates
Housing units17,582American 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
+286
705 births, 419 deaths
Net migration
+1,954
More people moved in than moved out.

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

The 6 areas bordering Caldwell 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
Guadalupe CountyTexas43 mi201,111
Bastrop CountyTexas28 mi118,908
Gonzales CountyTexas25 mi20,159
Hays CountyTexas19 mi304,390
Travis CountyTexas5.0 mi1,389,670
Fayette CountyTexas0.2 mi25,459

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.