Kirby, TX Demographics

Population 9,395 · Census ACS 2020–24

Choose a measure to map it.Tap a measure to map it. Swipe the row for more. Arrows show the change since 2006–10.

Median age by neighborhoodHistory and comparison ↓︎
Kirby, TX map of median age by neighborhood
Click the map to explore
Younger residents Older residents
Colorblind friendly off

More maps of Kirby: Best Neighborhoods · Walk Grade · Household income · Home prices · Race · Politics · Traffic noise · Internet

Jump to median age ↓︎

Population and households in Kirby

Household size in Kirby

Household size, people per household
PeriodKirbySan Antonio areaTexasU.S.
2006–103.072.852.872.68
2010–143.032.932.932.73
2015–193.223.102.952.71
2020–242.942.842.832.65
Change−0.12−0.01−0.05−0.03
Show on the map ↑︎

Households in Kirby are large by national standards, averaging 2.94 people against 2.65 for the U.S. That usually means more families with children at home. Since 2006–10, household size has dropped from 3.07, a much bigger shift than nationally.

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 Kirby

Median age, years
PeriodKirbySan Antonio areaTexasU.S.
2006–1035.835.134.737.7
2010–1435.935.735.438.6
2015–1937.236.036.139.6
2020–2437.736.936.740.1
Change+1.9+1.8+2.0+2.3
Show on the map ↑︎

The median resident of Kirby is 37.7 years old, a few years younger than the national median of 40.1. The median age has climbed from 35.8 in 2006–10, mirroring the country. Residents skew youngest in the southeast and oldest in the north.

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 Kirby

Single-parent households, % of households
PeriodKirbySan Antonio areaTexasU.S.
2006–1019.5%13.5%13.7%12.3%
2010–1413.6%14.0%13.7%12.3%
2015–1919.5%13.3%13.1%11.6%
2020–2415.2%13.3%12.9%11.6%
Change−4.3 pts−0.3 pts−0.8 pts−0.6 pts
Show on the map ↑︎

Single-parent households are common in Kirby: 15.2% of all households, against 11.6% nationally. The single-parent share has fallen 4.3 points since 2006–10, a much bigger shift than nationally.

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 Kirby

Renters in Kirby

Renters, % of occupied homes
PeriodKirbySan Antonio areaTexasU.S.
2006–1029.8%34.4%35.2%33.3%
2010–1427.9%37.3%37.3%35.6%
2015–1938.2%37.4%38.0%36.0%
2020–2431.0%36.7%37.4%34.8%
Change+1.1 pts+2.2 pts+2.3 pts+1.5 pts
Show on the map ↑︎

Most households in Kirby own their homes; 31.0% rent, a little below the national share of 34.8%. Among homeowners, 50.4% have no mortgage at all, well above the national share of 39.8%. Renting is most common in the west and least common in the center. The renter share has edged up 1.1 points since 2006–10, in line with the national trend.

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 Kirby

Vacant homes, % of all homes
PeriodKirbySan Antonio areaTexasU.S.
2006–106.1%10.7%11.8%11.4%
2010–148.6%9.4%10.9%11.4%
2015–194.5%9.3%10.9%11.1%
2020–247.0%8.7%9.4%9.6%
Change+0.9 pts−1.9 pts−2.4 pts−1.8 pts
Show on the map ↑︎

Fewer homes sit empty in Kirby than nationally: 7.0%, against 9.6% for the U.S. Vacancy is up 0.9 points from 2006–10, even as the national rate fell.

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 Kirby

Age of homes, median year built
PeriodKirbySan Antonio areaTexasU.S.
2006–101979198419831974
2010–141979198519851975
2015–191981198719871977
2020–241986199319921980
Change+7+9+8+6
Show on the map ↑︎

Homes in Kirby are newer than the national norm: the median home was built in 1986, versus 1980 across the U.S. Still, homes here are older than in the San Antonio area as a whole, where the median home dates to 1993. The median year built has moved up from 1979 in 2006–10, a sign of steady new building. Newer construction is concentrated in the southeast, while the north has the oldest housing.

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 Kirby

Rent, per month
PeriodKirbySan Antonio areaTexasU.S.
2006–10$767$906$921$965
2010–14$916$1,022$1,005$1,040
2015–19$1,012$1,173$1,178$1,213
2020–24$1,322$1,527$1,560$1,571
Change+$555+$621+$639+$606
Show on the map ↑︎

A typical rental in Kirby costs $1,322 a month with utilities, below the national median of $1,571. Rent has climbed $555 a month since 2006–10, up 72%, faster than rents rose nationally. The typical renter here spends 26.6% of household income on rent, comfortably under the 30% mark often used to define affordable rent, and a smaller share than renters pay nationally. The priciest rents are in the center; the most affordable are in the southeast.

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 Kirby

Bachelor's degrees in Kirby

Bachelor's degrees, % of adults 25+
PeriodKirbySan Antonio areaTexasU.S.
2006–1012.9%26.9%27.0%28.4%
2010–1412.6%27.4%27.9%29.6%
2015–1912.2%29.0%30.0%32.1%
2020–2416.6%33.1%34.0%35.6%
Change+3.7 pts+6.2 pts+7.1 pts+7.2 pts
Show on the map ↑︎

Fewer adults in Kirby have a four-year degree than in the country as a whole: 16.6%, against 35.6% nationally. The share with a degree is up 3.7 points from 2006–10, in line with the national trend. College graduates are most concentrated in the north and least in the southwest.

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 Kirby

High school graduates, % of adults 25+
PeriodKirbySan Antonio areaTexasU.S.
2006–1079.8%83.5%80.7%84.9%
2010–1479.2%84.4%82.0%86.1%
2015–1981.9%85.7%83.6%87.7%
2020–2476.0%88.1%85.8%89.3%
Change−3.8 pts+4.6 pts+5.1 pts+4.3 pts
Show on the map ↑︎

Nearly a quarter of adults in Kirby never finished high school, well above the national share: only 76.0% have a diploma or equivalent, against 89.3% nationally. The share with a diploma has fallen 3.8 points since 2006–10, even as the national rate rose. Kirby has a lower share of high school graduates than at least four in five Texas cities.

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 Kirby

Unemployment, % of the labor force
PeriodKirbySan Antonio areaTexasU.S.
2006–1010.1%6.8%7.0%8.1%
2010–1410.6%7.6%7.7%9.4%
2015–193.1%5.2%5.1%5.6%
2020–245.4%5.4%5.3%5.4%
Change−4.7 pts−1.4 pts−1.7 pts−2.7 pts
Show on the map ↑︎

At 5.4%, unemployment in Kirby is the same as the national rate. Unemployment has fallen 4.7 points since 2006–10, as it has nationally. Each figure pools five years of surveys (2020–24), so it describes that whole stretch rather than today's 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).

Kirby compared with nearby cities

CityHousehold sizeMedian ageSingle parentsRentersVacant homesMedian year builtMedian rentBachelor's degreeHigh school diplomaUnemployment
Kirby2.9437.715.2%31.0%7.0%1986$1,32216.6%76.0%5.4%
Terrell Hills2.7742.14.3%18.7%10.7%1957$1,25777.0%95.5%3.7%
Windcrest2.7141.012.8%18.4%13.2%1979$1,36041.2%94.1%3.2%
Alamo Heights2.2843.39.2%25.9%17.1%1958$1,93773.3%97.9%2.9%
Converse3.0632.813.1%24.8%4.4%2007$1,86431.4%91.8%4.3%
China Grove2.5152.79.5%6.9%10.1%1989$1,65430.7%91.7%5.1%
Olmos Park2.5840.26.7%16.0%14.7%1943$1,03777.6%99.4%8.8%
Live Oak2.5538.411.0%36.3%5.6%1993$1,63732.5%94.8%5.8%
Universal City2.5836.711.3%43.7%5.1%1991$1,39433.6%95.5%5.0%
Randolph AFB3.4122.64.4%100.0%2.8%1938$2,24762.7%99.3%3.6%
Castle Hills2.6144.96.7%21.1%12.6%1965$1,82049.2%92.9%2.4%

All figures 2020–24.

Cities with similar populations: Struthers, OH · Talbott, TN · Swannanoa, NC · Sutherlin, OR · Sumrall, MS · Barnwell, SC · Bassett, VA · Bath, NY · Bealeton, VA · Beaufort, NC

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 Kirby. 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.

No other site shows detail at this level for free. We are able to keep this site free by receiving a small commission from the referring links on this page. Please share or cite this page if you aren’t able to otherwise support our work.