Karnes County, Texas
Located in Texas, Karnes County has a population of 14,968 residents and a median age of 38.1 years, making it the #2,164 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 19.1%. The median home value is $149,000, and the median household income is $60,214, which is 20% below the national median.
Demographics
Karnes County has a population of 14,968, making it the #2,164 most populous county in the US. The median age is 38.1 years, which is 2.1% below the national median.
Population Trend
Rankings →Year-over-Year Population Growth
Age & Sex Distribution
Race & Ethnicity
Nativity
Geographic Mobility (Past Year)
Economy
The median household income in Karnes County is $60,214, ranking #2,059 out of 3,222 counties — 19.9% below the national median. The poverty rate is 19.1% and unemployment stands at 2.9%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Karnes County is $149,000 (-47.1% vs national). Renters pay a median of $957/mo and the homeownership rate is 62.4%.
Median Home Value Trend
Rankings →Household Type
Education
In Karnes County, 14.3% of adults age 25+ hold a bachelor's degree or higher, which is 57.6% below the national average, ranking #2,908 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Karnes County is 74.1 years. 26.8% of adults report poor or fair health and 18.3% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
17.0% of adults in Karnes County smoke , 40.5% are obese , and 19.3% report excessive drinking.
Adult Smoking Trend
Safety
. Motor vehicle deaths occur at a rate of 18.7 per 100,000.
Motor Vehicle Deaths Trend
Families & Children
26.5% of children in Karnes County live in poverty . The teen birth rate is 32.6 per 1,000 females age 15–19.
Teen Birth Rate Trend
Civic & Transportation
Voter turnout in Karnes County is 47.8%. The mean commute time is 23.5 min, which is 14.7% below the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Karnes County voted Republican with a margin of 58.1%. The vote was 20.7% Dem / 78.8% Rep. Compared to 2020, the margin shifted 6.0 toward Republicans .
Vote Share Over Time
About Karnes County, Texas
Karnes County, Texas has a total population of 14,968, making it the 2,164th most populous county in the United States. The median age in Karnes County is 38.1 years, which is 2.1% below the national median of 38.9 years.
The median household income in Karnes County is $60,214, which ranks #2,059 of 3,222 counties nationwide. This is 19.9% below the national median of $75,149. The poverty rate is 19.1%, higher than the national rate of 12.6%. The unemployment rate stands at 2.9%.
The median home value in Karnes County is $149,000, 47.1% below the national median. Renters in Karnes County pay a median gross rent of $957 per month. The homeownership rate is 62.4%, compared to the national rate of 64.4%.
In Karnes County, 14.3% of residents aged 25 and older hold a bachelor's degree or higher, 57.6% below the national average of 33.7%. Health insurance coverage stands at 84.2% of the population. The average commute time for workers is 23.5 min.
Karnes County is a diverse community. The largest racial or ethnic group is Hispanic or Latino at 53.4% of the population, followed by White (non-Hispanic) (34.7%) and Black (non-Hispanic) (9.3%).
All data for Karnes County, Texas comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates. These figures are estimates based on survey sampling and are subject to margin of error. For the most detailed and up-to-date data, visit the Census Bureau's official data portal.