Hamilton County, Texas
County seat: Hamilton · Population 8,680 (2025) · 836 sq mi
Hamilton County is the 175th most populous of Texas's 254 counties, with 8,680 people (2025 estimate). Its county seat is Hamilton. It is part of the Central Texas region, one of the 12 Texas Comptroller economic regions. The map shows its 3 cities and towns and the 6 neighboring counties.
Hamilton County facts
- County seat
- Hamilton
- Population (2025 estimate)
- 8,680 +5.5% since 2020
- Land area
- 836 sq mi 190th largest of 254
- Water area
- 1 sq mi
- Population density
- 10 per sq mi
- Established
- 1856
- Named after
- James Hamilton Governor of South Carolina (1786-1857)
- Largest city
- Hamilton 3,016
- Median household income
- $58,219
- Cities and towns
- 3 plus 1 CDPs
- ZIP codes
- 10
- Time zone
- Central
- FIPS code
- 48193
Cities and towns in Hamilton County
Hamilton County has 3 incorporated cities, towns and villages. Populations count the people living inside Hamilton County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Hamilton (county seat) | City | 3,016 | |
| Hico | City | 1,496 | Erath County |
| Evant | Town | 134 | Coryell County |
Unincorporated communities (CDPs)
Census-designated places are communities without their own city government; the county provides their services.
| Community | Population | Also in |
|---|---|---|
| Carlton | 10 |
ZIP codes in Hamilton County
10 ZIP codes reach into Hamilton County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 76436 also Comanche and Erath counties
- 76442 also Comanche and Mills counties
- 76457 also Erath and Bosque counties
- 76525 also Coryell and Lampasas counties
- 76531 also Comanche and Mills counties
- 76538 also Coryell County
- 76565
- 76566 also Coryell County
- 76637 also Bosque County
- 76844 also Mills and Lampasas counties
Population of Hamilton County, 2020–2025
Hamilton County grew by 456 people (+5.5%) between April 2020 and July 2025: 279 more deaths than births and a net gain of 733 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 8,252 |
| 2021 | 8,241 |
| 2022 | 8,310 |
| 2023 | 8,603 |
| 2024 | 8,716 |
| 2025 | 8,680 |
Neighboring counties
- Coryell County southeast · 85,592 people
- Bosque County northeast · 18,918 people
- Comanche County northwest · 14,432 people
- Mills County southwest · 4,580 people
- Erath County north · 43,911 people
- Lampasas County south · 23,657 people
Printable Hamilton 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) (124 KB)
- PNG (2400 px) (74 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.
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