Knox County, Texas
County seat: Benjamin · Population 3,192 (2025) · 851 sq mi
Knox County is the 218th most populous of Texas's 254 counties, with 3,192 people (2025 estimate). Its county seat is Benjamin. It is part of the Northwest region, one of the 12 Texas Comptroller economic regions. The map shows its 4 cities and towns and the 6 neighboring counties.
Knox County facts
- County seat
- Benjamin
- Population (2025 estimate)
- 3,192 −4.8% since 2020
- Land area
- 851 sq mi 184th largest of 254
- Water area
- 5 sq mi
- Population density
- 4 per sq mi
- Established
- 1858
- Named after
- Henry Knox American general and Secretary of War (1750–1806)
- Largest city
- Munday 1,190
- Median household income
- $56,667
- Cities and towns
- 4
- ZIP codes
- 6
- Time zone
- Central
- FIPS code
- 48275
Cities and towns in Knox County
Knox County has 4 incorporated cities, towns and villages. Populations count the people living inside Knox County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Munday | City | 1,190 | |
| Knox City | Town | 1,009 | |
| Benjamin (county seat) | City | 189 | |
| Goree | City | 152 |
ZIP codes in Knox County
6 ZIP codes reach into Knox County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 76363
- 76371 also Haskell County
- 76380 also Baylor County
- 79227 also Foard County
- 79505
- 79529 also Haskell County
Population of Knox County, 2020–2025
Knox County shrank by 161 people (−4.8%) between April 2020 and July 2025: 113 more deaths than births and a net loss of 50 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 3,346 |
| 2021 | 3,318 |
| 2022 | 3,279 |
| 2023 | 3,318 |
| 2024 | 3,251 |
| 2025 | 3,192 |
Neighboring counties
- Foard County north · 1,044 people
- King County west · 192 people
- Haskell County south · 5,499 people
- Baylor County east · 3,472 people
- Stonewall County southwest · 1,186 people
- Throckmorton County southeast · 1,554 people
Printable Knox 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) (129 KB)
- PNG (2400 px) (64 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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