Karnes County, Texas
County seat: Karnes City · Population 15,018 (2025) · 748 sq mi
Karnes County is the 139th most populous of Texas's 254 counties, with 15,018 people (2025 estimate). Its county seat is Karnes City. It is part of the Alamo region, one of the 12 Texas Comptroller economic regions. The map shows its 4 cities and towns and the 7 neighboring counties.
Karnes County facts
- County seat
- Karnes City
- Population (2025 estimate)
- 15,018 +1.7% since 2020
- Land area
- 748 sq mi 209th largest of 254
- Water area
- 6 sq mi
- Population density
- 20 per sq mi
- Established
- 1854
- Named after
- Henry Karnes Texas ranger
- Largest city
- Karnes City 3,540
- Median household income
- $60,214
- Cities and towns
- 4
- ZIP codes
- 10
- Time zone
- Central
- FIPS code
- 48255
Cities and towns in Karnes County
Karnes County has 4 incorporated cities, towns and villages. Populations count the people living inside Karnes County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Karnes City (county seat) | City | 3,540 | |
| Kenedy | City | 3,305 | |
| Runge | Town | 952 | |
| Falls City | City | 476 |
ZIP codes in Karnes County
10 ZIP codes reach into Karnes County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 78111
- 78113 also Wilson and Atascosa counties
- 78116
- 78117
- 78118 also Live Oak and Atascosa counties
- 78119 also Bee and Live Oak counties
- 78140 also Gonzales, Wilson and Guadalupe counties
- 78141 also DeWitt County
- 78144
- 78151 also DeWitt County
Population of Karnes County, 2020–2025
Karnes County grew by 245 people (+1.7%) between April 2020 and July 2025: 131 more deaths than births and a net gain of 357 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 14,811 |
| 2021 | 14,800 |
| 2022 | 14,989 |
| 2023 | 14,965 |
| 2024 | 15,020 |
| 2025 | 15,018 |
Neighboring counties
- Wilson County northwest · 56,139 people
- DeWitt County east · 20,309 people
- Bee County south · 32,515 people
- Goliad County southeast · 7,208 people
- Gonzales County northeast · 20,159 people
- Live Oak County southwest · 11,929 people
- Atascosa County west · 53,590 people
Printable Karnes 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) (131 KB)
- PNG (2400 px) (79 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.
Back to the Texas county map with all 254 counties. Found an error? Tell us.