Population 4,229 · Census ACS 2020–24
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Population and households in Karnes City
Household size in Karnes City
| Period | Karnes City | San Antonio area | Texas | U.S. |
|---|---|---|---|---|
| 2006–10 | 1.90 | 2.85 | 2.87 | 2.68 |
| 2010–14 | 2.64 | 2.93 | 2.93 | 2.73 |
| 2015–19 | 2.80 | 3.10 | 2.95 | 2.71 |
| 2020–24 | 2.63 | 2.84 | 2.83 | 2.65 |
| Change | +0.73 | −0.01 | −0.05 | −0.03 |
Households in Karnes City average 2.63 people, about the same as the country as a whole (2.65). The typical household here is smaller than in the San Antonio area as a whole, where it has 2.84 people. Since 2006–10, household size has climbed from 1.90, but in a place this small, much of that may be survey noise rather than real change.
Household size: the average number of people living in each occupied home. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25010).
Median age in Karnes City
| Period | Karnes City | San Antonio area | Texas | U.S. |
|---|---|---|---|---|
| 2006–10 | 42.0 | 35.1 | 34.7 | 37.7 |
| 2010–14 | 38.3 | 35.7 | 35.4 | 38.6 |
| 2015–19 | 37.2 | 36.0 | 36.1 | 39.6 |
| 2020–24 | 33.0 | 36.9 | 36.7 | 40.1 |
| Change | −9.0 | +1.8 | +2.0 | +2.3 |
With a median age of just 33.0, Karnes City is far younger than the country as a whole (40.1), a population that tilts toward young adults and children.
Median age: the age that splits residents into two equal halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B01002).
Single-parent households in Karnes City
| Period | Karnes City | San Antonio area | Texas | U.S. |
|---|---|---|---|---|
| 2006–10 | 17.8% | 13.5% | 13.7% | 12.3% |
| 2010–14 | 21.2% | 14.0% | 13.7% | 12.3% |
| 2015–19 | 12.6% | 13.3% | 13.1% | 11.6% |
| 2020–24 | 21.4% | 13.3% | 12.9% | 11.6% |
| Change | +3.6 pts | −0.3 pts | −0.8 pts | −0.6 pts |
Single parents head just over one in five households in Karnes City (21.4%), well above the national share of 11.6%.
Single-parent households: households where one adult with no spouse present lives with children under 18. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B11003).
Housing in Karnes City
Renters in Karnes City
| Period | Karnes City | San Antonio area | Texas | U.S. |
|---|---|---|---|---|
| 2006–10 | 28.8% | 34.4% | 35.2% | 33.3% |
| 2010–14 | 28.9% | 37.3% | 37.3% | 35.6% |
| 2015–19 | 30.3% | 37.4% | 38.0% | 36.0% |
| 2020–24 | 26.8% | 36.7% | 37.4% | 34.8% |
| Change | −2.0 pts | +2.2 pts | +2.3 pts | +1.5 pts |
Most households in Karnes City own their homes; 26.8% rent, below the national share of 34.8%. Just over seven in ten owners (72.3%) have paid off their mortgages, well above the national share of 39.8%.
Renters: occupied homes that are rented rather than owned. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25003).
Vacant homes in Karnes City
| Period | Karnes City | San Antonio area | Texas | U.S. |
|---|---|---|---|---|
| 2006–10 | 24.9% | 10.7% | 11.8% | 11.4% |
| 2010–14 | 24.4% | 9.4% | 10.9% | 11.4% |
| 2015–19 | 32.6% | 9.3% | 10.9% | 11.1% |
| 2020–24 | 22.5% | 8.7% | 9.4% | 9.6% |
| Change | −2.4 pts | −1.9 pts | −2.4 pts | −1.8 pts |
Vacant homes make up 22.5% of the housing in Karnes City, far above the national rate of 9.6%. In resort and lake areas that usually means seasonal and vacation homes; elsewhere it can point to weak demand.
Vacant homes: homes with no one living in them, including vacation homes and homes for sale or rent. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25002).
Age of homes in Karnes City
| Period | Karnes City | San Antonio area | Texas | U.S. |
|---|---|---|---|---|
| 2006–10 | 1963 | 1984 | 1983 | 1974 |
| 2010–14 | 1971 | 1985 | 1985 | 1975 |
| 2015–19 | 1974 | 1987 | 1987 | 1977 |
| 2020–24 | 1979 | 1993 | 1992 | 1980 |
| Change | +15 | +9 | +8 | +6 |
The typical home in Karnes City was built around 1979, about the same vintage as the country's housing overall (1980). Homes here are older than in the wider San Antonio area, where the median home dates to 1993.
Age of homes: the year that splits the housing stock into older and newer halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25035).
Rent in Karnes City
| Period | Karnes City | San Antonio area | Texas | U.S. |
|---|---|---|---|---|
| 2006–10 | $529 | $906 | $921 | $965 |
| 2010–14 | $563 | $1,022 | $1,005 | $1,040 |
| 2015–19 | $805 | $1,173 | $1,178 | $1,213 |
| 2020–24 | $763 | $1,527 | $1,560 | $1,571 |
| Change | +$234 | +$621 | +$639 | +$606 |
The median renter in Karnes City pays $763 a month for rent and utilities, well below the national median of $1,571. The typical renter here spends 28.5% of household income on rent, just under the 30% mark often used to define affordable rent, and a smaller share than renters pay nationally.
Rent: monthly rent plus the utilities renters pay themselves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25064).
Education in Karnes City
Bachelor's degrees in Karnes City
| Period | Karnes City | San Antonio area | Texas | U.S. |
|---|---|---|---|---|
| 2006–10 | 9.2% | 26.9% | 27.0% | 28.4% |
| 2010–14 | 13.7% | 27.4% | 27.9% | 29.6% |
| 2015–19 | 18.5% | 29.0% | 30.0% | 32.1% |
| 2020–24 | 14.2% | 33.1% | 34.0% | 35.6% |
| Change | +5.0 pts | +6.2 pts | +7.1 pts | +7.2 pts |
College degrees are relatively uncommon in Karnes City: 14.2% of adults 25 and older hold a bachelor's or higher, well below the national share of 35.6%.
Bachelor's degrees: adults 25 and older with a bachelor's degree or higher. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).
High school graduates in Karnes City
| Period | Karnes City | San Antonio area | Texas | U.S. |
|---|---|---|---|---|
| 2006–10 | 65.4% | 83.5% | 80.7% | 84.9% |
| 2010–14 | 66.9% | 84.4% | 82.0% | 86.1% |
| 2015–19 | 74.1% | 85.7% | 83.6% | 87.7% |
| 2020–24 | 80.7% | 88.1% | 85.8% | 89.3% |
| Change | +15.3 pts | +4.6 pts | +5.1 pts | +4.3 pts |
Nearly one in five adults in Karnes City never finished high school, well above the national share: only 80.7% have a diploma or equivalent, against 89.3% nationally.
High school graduates: adults 25 and older with a high school diploma, GED or more. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).
Jobs in Karnes City
| Period | Karnes City | San Antonio area | Texas | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.1% | 6.8% | 7.0% | 8.1% |
| 2010–14 | 2.3% | 7.6% | 7.7% | 9.4% |
| 2015–19 | 6.3% | 5.2% | 5.1% | 5.6% |
| 2020–24 | 5.3% | 5.4% | 5.3% | 5.4% |
| Change | +3.2 pts | −1.4 pts | −1.7 pts | −2.7 pts |
Unemployment in Karnes City is close to the national rate: 5.3% of the labor force, against 5.4%. Because the Census pools five years of responses (2020–24), these rates smooth over short swings and lag the current job market.
Unemployment: people looking for work as a share of everyone working or looking. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B23025).
Karnes City compared with nearby cities
| City | Household size | Median age | Single parents | Renters | Vacant homes | Median year built | Median rent | Bachelor's degree | High school diploma | Unemployment |
|---|---|---|---|---|---|---|---|---|---|---|
| Karnes City | 2.63 | 33.0 | 21.4% | 26.8% | 22.5% | 1979 | $763 | 14.2% | 80.7% | 5.3% |
| Hobson | 2.70 | 42.1 | 2.4% | 19.1% | 18.4% | 1998 | $964 | 29.2% | 96.7% | 5.4% |
| Kenedy | 2.30 | 43.2 | 9.9% | 53.6% | 19.3% | 1993 | $1,136 | 9.3% | 72.6% | 0.9% |
| Ecleto | 2.59 | 40.6 | 12.3% | 21.6% | 17.5% | 1990 | $905 | 19.2% | 85.7% | 4.7% |
| Helena | 2.29 | 40.6 | 20.4% | 28.1% | 18.4% | 1994 | $829 | 25.9% | 88.2% | 5.0% |
| Green | 2.26 | 39.2 | 5.2% | 17.6% | 18.2% | 1993 | $1,177 | 6.0% | 65.4% | 0.9% |
| Falls City | 2.78 | 39.5 | 4.9% | 21.8% | 13.8% | 1997 | $1,051 | 24.4% | 95.4% | 3.2% |
| El Oso | 2.89 | 45.9 | 3.5% | 13.4% | 35.5% | 1979 | $717 | 15.7% | 73.3% | 21.2% |
| Runge | 2.30 | 26.1 | 36.0% | 46.0% | 12.9% | 1992 | $955 | 25.7% | 85.2% | 1.8% |
| Zunkerville | 2.59 | 42.6 | 11.0% | 18.5% | 35.3% | 1981 | $909 | 14.7% | 82.4% | 3.9% |
| Choate | 2.26 | 38.0 | 8.1% | 28.7% | 17.7% | 1993 | $1,157 | 7.8% | 67.2% | 1.0% |
All figures 2020–24.
Cities with similar populations: Avondale, LA · Bangor, MI · Batesburg, SC · Branchville, NJ · Buckner, MO · Hickory Creek, TX · New Kent, VA · Freeport, PA · Gang Mills, NY · Ravenna, MI
About these numbers
Every figure on this page is a BestNeighborhood calculation from the Census Bureau's American Community Survey (ACS), built up from the Census block groups that make up Karnes City. Each ACS 5-year release pools five years of responses; this page shows the last 15 releases, 2006–10 through 2020–24. Neighboring releases share four of their five years, so they move gradually and small changes between them are within the survey's margin of error; in small places the lines can jump from one release to the next for the same reason. The maps show the same measures for each neighborhood, ranked against the whole country.
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