County Maps US

Hamilton County, Texas

A county in Texas, ranked 175 of 254 by population.

CountyFIPS 48193

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

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Population
8,680
+428 (+5.2%) since 2020
Land area
835.9
square miles. A further 0.1% of the total area is water
Population density
10.4
people per square mile, computed rather than published
County seat
Hamilton
Seat of county government.
Established
1856
169 years ago
Largest city
Hamilton city
Population 3,016.

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 Hamilton 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 Hamilton 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 790 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 Hamilton 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
Population8,680175th of 2542,518th of 3,144
Land area835.9 sq mi190th of 2541,003rd of 3,144
Population density10.4 per sq mi167th of 2542,552nd of 3,144
Median household income$58,219188th of 2542,244th of 3,143

Full data for Hamilton County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population8,680Vintage 2025 Population Estimates
Population in 20208,252Vintage 2025 Population Estimates
2020 estimates base?8,224Vintage 2025 Population Estimates
Land area835.9 sq mi2025 Gazetteer Files
Water area0.48 sq mi2025 Gazetteer Files
Total area836.4 sq mi2025 Gazetteer Files
Population density?10.4 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$58,219American Community Survey 2020-2024 5-Year Estimates
Median home value$147,700American Community Survey 2020-2024 5-Year Estimates
Median age43.5American Community Survey 2020-2024 5-Year Estimates
Households3,120American Community Survey 2020-2024 5-Year Estimates
Housing units4,372American 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
-40
91 births, 131 deaths
Net migration
+5
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 Hamilton 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
Coryell CountyTexas28 mi85,592
Bosque CountyTexas28 mi18,918
Comanche CountyTexas27 mi14,432
Mills CountyTexas22 mi4,580
Erath CountyTexas14 mi43,911
Lampasas CountyTexas6.3 mi23,657

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.