Deaf Smith County, Texas
County seat: Hereford · Population 18,626 (2025) · 1,497 sq mi
Deaf Smith County is the 131st most populous of Texas's 254 counties, with 18,626 people (2025 estimate). Its county seat is Hereford. It is part of the High Plains region, one of the 12 Texas Comptroller economic regions. The map shows its 1 city or town and the 7 neighboring counties.
Deaf Smith County facts
- County seat
- Hereford
- Population (2025 estimate)
- 18,626 +0.2% since 2020
- Land area
- 1,497 sq mi 22nd largest of 254
- Water area
- 2 sq mi
- Population density
- 12 per sq mi
- Established
- 1876
- Named after
- Deaf Smith Texan soldier
- Largest city
- Hereford 14,976
- Median household income
- $60,799
- Cities and towns
- 1
- ZIP codes
- 6
- Time zone
- Central
- FIPS code
- 48117
Cities and towns in Deaf Smith County
Deaf Smith County has 1 incorporated place. Populations count the people living inside Deaf Smith County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Hereford (county seat) | City | 14,976 |
ZIP codes in Deaf Smith County
6 ZIP codes reach into Deaf Smith County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 79001 also Oldham County
- 79025
- 79035 also Parmer County
- 79045 also Castro County
- 79092 also Oldham County
- 79098 also Oldham, Randall and Potter counties
Population of Deaf Smith County, 2020–2025
Deaf Smith County grew by 34 people (+0.2%) between April 2020 and July 2025: 739 more births than deaths and a net loss of 686 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 18,533 |
| 2021 | 18,386 |
| 2022 | 18,423 |
| 2023 | 18,422 |
| 2024 | 18,513 |
| 2025 | 18,626 |
Neighboring counties
- Oldham County north · 1,783 people
- Randall County east · 152,351 people
- Parmer County south · 9,678 people
- Castro County southeast · 7,295 people
- Quay County, New Mexico west · 8,454 people
- Curry County, New Mexico southwest · 46,655 people
- Potter County northeast · 114,453 people
Printable Deaf Smith 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) (122 KB)
- PNG (2400 px) (52 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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