Clay County, Texas
County seat: Henrietta · Population 10,764 (2025) · 1,089 sq mi
Clay County is the 161st most populous of Texas's 254 counties, with 10,764 people (2025 estimate). Its county seat is Henrietta. It is part of the Northwest region, one of the 12 Texas Comptroller economic regions. The map shows its 8 cities and towns and the 6 neighboring counties.
Clay County facts
- County seat
- Henrietta
- Population (2025 estimate)
- 10,764 +5.4% since 2020
- Land area
- 1,089 sq mi 50th largest of 254
- Water area
- 28 sq mi
- Population density
- 10 per sq mi
- Established
- 1857
- Named after
- Henry Clay American politician from Kentucky (1777-1852)
- Largest city
- Henrietta 3,258
- Median household income
- $80,114
- Cities and towns
- 8
- ZIP codes
- 9
- Time zone
- Central
- FIPS code
- 48077
Cities and towns in Clay County
Clay County has 8 incorporated cities, towns and villages. Populations count the people living inside Clay County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Henrietta (county seat) | City | 3,258 | |
| Petrolia | City | 534 | |
| Dean | City | 521 | |
| Byers | City | 469 | |
| Bellevue | City | 298 | |
| Jolly | City | 168 | |
| Windthorst | Town | 17 | Archer County |
| Wichita Falls | City | 2 | Wichita County |
ZIP codes in Clay County
9 ZIP codes reach into Clay County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 76228 also Montague County
- 76230 also Montague and Jack counties
- 76261 also Montague County
- 76305 also Wichita County
- 76310 also Archer and Wichita counties
- 76357
- 76365 also Jack County
- 76377
- 76389 also Archer and Jack counties
Population of Clay County, 2020–2025
Clay County grew by 547 people (+5.4%) between April 2020 and July 2025: 271 more deaths than births and a net gain of 813 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 10,255 |
| 2021 | 10,312 |
| 2022 | 10,486 |
| 2023 | 10,700 |
| 2024 | 10,736 |
| 2025 | 10,764 |
Neighboring counties
- Jefferson County, Oklahoma northeast · 5,431 people
- Montague County east · 21,966 people
- Jack County south · 9,563 people
- Archer County southwest · 9,129 people
- Cotton County, Oklahoma north · 5,432 people
- Wichita County northwest · 129,555 people
Printable Clay 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) (145 KB)
- PNG (2400 px) (86 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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