Allen County, KS Demographics

Population 12,483 · Census ACS 2020–24

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Median age by neighborhoodHistory and comparison ↓︎
Allen County, KS map of median age by neighborhood
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Population and households in Allen County

Household size in Allen County

Household size, people per household
PeriodAllen CountyKansasU.S.
2006–102.362.542.68
2010–142.402.582.73
2015–192.262.562.71
2020–242.482.532.65
Change+0.11−0.01−0.03
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The average household in Allen County has 2.48 people, under the U.S. average of 2.65. The picture is much the same across Kansas. Household size has climbed from 2.36 in 2006–10, even as the national average fell.

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 Allen County

Median age, years
PeriodAllen CountyKansasU.S.
2006–1039.837.437.7
2010–1441.637.838.6
2015–1943.638.539.6
2020–2440.238.840.1
Change+0.4+1.4+2.3
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At 40.2, the median age in Allen County is close to the national median of 40.1, so its age mix looks much like the country's. Since 2006–10, the median age has crept up from 39.8, a smaller shift than nationally. The youngest areas are in the north, the oldest in the east.

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 Allen County

Single-parent households, % of households
PeriodAllen CountyKansasU.S.
2006–1010.8%10.8%12.3%
2010–1411.2%10.9%12.3%
2015–1910.1%10.4%11.6%
2020–2412.6%10.5%11.6%
Change+1.8 pts−0.4 pts−0.6 pts
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Single parents head about one in eight households in Allen County (12.6%), close to the national share of 11.6%. Single parents are more common here than in Kansas overall (10.5%). The single-parent share is up 1.8 points from 2006–10, even as the national share fell.

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 Allen County

Renters in Allen County

Renters, % of occupied homes
PeriodAllen CountyKansasU.S.
2006–1022.0%30.6%33.3%
2010–1427.7%32.9%35.6%
2015–1929.2%33.7%36.0%
2020–2424.6%32.8%34.8%
Change+2.6 pts+2.3 pts+1.5 pts
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Allen County is largely a place of homeowners: only 24.6% of households rent, far below the national share of 34.8%. Owner-heavy areas like this tend to see less turnover. Among homeowners, 54.8% have no mortgage at all, well above the national share of 39.8%. The renter share has risen 2.6 points since 2006–10, mirroring the country.

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 Allen County

Vacant homes, % of all homes
PeriodAllen CountyKansasU.S.
2006–1010.9%10.1%11.4%
2010–1414.3%10.4%11.4%
2015–1915.0%11.3%11.1%
2020–2416.2%9.7%9.6%
Change+5.3 pts−0.4 pts−1.8 pts
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Vacancy is high in Allen County: 16.2% of homes are empty, 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. Vacancy is up 5.3 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 Allen County

Age of homes, median year built
PeriodAllen CountyKansasU.S.
2006–10195719711974
2010–14196419721975
2015–19196419731977
2020–24196519761980
Change+8+5+6
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The housing in Allen County is old by national standards: the median home dates to 1965, against 1980 for the U.S., so buyers will find more older houses, some of them due for updates. The median year built has moved up from 1957 in 2006–10, a sign of steady new building. The newest homes are mostly in the north, the oldest in the center.

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 Allen County

Rent, per month
PeriodAllen CountyKansasU.S.
2006–10$484$769$965
2010–14$537$858$1,040
2015–19$660$950$1,213
2020–24$651$1,159$1,571
Change+$166+$390+$606
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The median renter in Allen County pays $651 a month for rent and utilities, well below the national median of $1,571. Rents are up $166 a month from 2006–10, a 34% rise, a slower climb than the nation's. The typical renter here spends 26.1% of household income on rent, comfortably under the 30% mark often used to define affordable rent, and a smaller share than renters pay nationally. Rents run highest in the north and lowest in the east.

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 Allen County

Bachelor's degrees in Allen County

Bachelor's degrees, % of adults 25+
PeriodAllen CountyKansasU.S.
2006–1018.3%30.8%28.4%
2010–1416.3%31.7%29.6%
2015–1920.4%33.6%32.1%
2020–2423.5%35.6%35.6%
Change+5.2 pts+4.8 pts+7.2 pts
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Fewer adults in Allen County have a four-year degree than in the country as a whole: 23.5%, against 35.6% nationally. Since 2006–10, the share with a degree has risen 5.2 points, mirroring the country.

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 Allen County

High school graduates, % of adults 25+
PeriodAllen CountyKansasU.S.
2006–1089.5%89.5%84.9%
2010–1489.8%90.0%86.1%
2015–1991.4%90.8%87.7%
2020–2494.6%91.7%89.3%
Change+5.1 pts+2.2 pts+4.3 pts
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High school completion is high in Allen County: 94.6% of adults 25 and older have a diploma or equivalent, well above the national rate of 89.3%. The share with a diploma has risen 5.1 points since 2006–10, as it has 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 Allen County

Unemployment, % of the labor force
PeriodAllen CountyKansasU.S.
2006–104.9%6.1%8.1%
2010–147.0%6.7%9.4%
2015–194.5%4.1%5.6%
2020–248.0%4.0%5.4%
Change+3.1 pts−2.1 pts−2.7 pts
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Finding work has been harder in Allen County: 8.0% of the labor force was out of work and looking, well above the national rate of 5.4%. Only one other Kansas county has higher unemployment. Unemployment is up 3.1 points from 2006–10, even as the national rate fell.

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).

Allen County compared with nearby counties

CountyHousehold sizeMedian ageSingle parentsRentersVacant homesMedian year builtMedian rentBachelor's degreeHigh school diplomaUnemployment
Allen County2.4840.212.6%24.6%16.2%1965$65123.5%94.6%8.0%
Woodson County2.4447.76.8%15.4%30.4%1961$61623.1%90.4%1.5%
Bourbon County2.4740.28.4%26.0%16.0%1961$76324.2%90.7%4.8%
Greenwood County2.1947.810.6%19.5%26.7%1959$78921.1%92.9%3.4%
Vernon County2.5141.98.6%28.7%13.6%1975$75116.2%88.6%4.2%
Cedar County2.5943.26.7%25.9%16.8%1983$69218.3%89.0%2.4%
Butler County2.6539.49.7%22.4%8.8%1985$1,10434.3%95.0%3.5%
Hickory County2.4153.85.1%17.6%32.9%1985$65713.1%87.3%12.9%
Pulaski County2.6330.812.0%38.8%14.3%1992$1,09825.5%94.6%4.7%
Phelps County2.5037.612.3%38.3%14.9%1986$84532.4%89.8%4.1%
Edwards County2.3544.611.8%20.8%24.5%1947$73619.7%85.7%7.8%

All figures 2020–24.

Counties with similar populations: Hidalgo County, NM · Gooding County, ID · Grant County, MN · Grant County, OR · Grant County, SD · Braxton County, WV · Lanier County, GA · Bowman County, ND · Plumas County, CA · Greenlee County, AZ

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 Allen County. 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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