Hamilton County, KS Demographics

Population 2,471 · Census ACS 2020–24

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

Household size in Hamilton County

Household size, people per household
PeriodHamilton CountyKansasU.S.
2006–102.282.542.68
2010–142.602.582.73
2015–192.902.562.71
2020–243.282.532.65
Change+1.00−0.01−0.03
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Hamilton County is a place of big households: 3.28 people per home on average, compared with 2.65 nationally. Numbers like that usually point to plenty of families with kids. Since 2006–10, household size has climbed from 2.28, but in a place this small, much of that may be survey noise rather than real change. Only one other Kansas county has larger households.

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 Hamilton County

Median age, years
PeriodHamilton CountyKansasU.S.
2006–1035.037.437.7
2010–1437.837.838.6
2015–1936.438.539.6
2020–2433.738.840.1
Change−1.3+1.4+2.3
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With a median age of just 33.7, Hamilton County is far younger than the country as a whole (40.1), a population that tilts toward young families with children. Of Kansas' 105 counties, only three are younger.

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 Hamilton County

Single-parent households, % of households
PeriodHamilton CountyKansasU.S.
2006–1017.4%10.8%12.3%
2010–146.8%10.9%12.3%
2015–194.9%10.4%11.6%
2020–2420.1%10.5%11.6%
Change+2.7 pts−0.4 pts−0.6 pts
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Single-parent households are common in Hamilton County: 20.1% of all households, against 11.6% nationally. No other Kansas county has a higher share of single-parent households.

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 Hamilton County

Renters in Hamilton County

Renters, % of occupied homes
PeriodHamilton CountyKansasU.S.
2006–1025.8%30.6%33.3%
2010–1425.8%32.9%35.6%
2015–1928.3%33.7%36.0%
2020–2422.9%32.8%34.8%
Change−2.9 pts+2.3 pts+1.5 pts
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Hamilton County is largely a place of homeowners: only 22.9% of households rent, far below the national share of 34.8%. Owner-heavy areas like this tend to see less turnover. About two-thirds of owners (67.8%) 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 Hamilton County

Vacant homes, % of all homes
PeriodHamilton CountyKansasU.S.
2006–1013.9%10.1%11.4%
2010–1415.9%10.4%11.4%
2015–1924.7%11.3%11.1%
2020–2424.0%9.7%9.6%
Change+10.1 pts−0.4 pts−1.8 pts
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Vacant homes make up 24.0% of the housing in Hamilton County, 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. Hamilton County has a higher vacancy rate than the great majority of Kansas counties.

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 Hamilton County

Age of homes, median year built
PeriodHamilton CountyKansasU.S.
2006–10195719711974
2010–14196419721975
2015–19196619731977
2020–24197019761980
Change+13+5+6
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Hamilton County is a place of older homes: half were built before 1970, while the national median is 1980. That means established neighborhoods, and more houses that may need updating. Compared with other Kansas counties, though, Hamilton County has newer homes than most.

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 Hamilton County

Rent, per month
PeriodHamilton CountyKansasU.S.
2006–10$553$769$965
2010–14$492$858$1,040
2015–19$722$950$1,213
2020–24$773$1,159$1,571
Change+$220+$390+$606
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A typical rental in Hamilton County costs $773 a month with utilities, well below the national median of $1,571. Rent takes 19.2% of the typical renter's income, comfortably under the 30% mark often used to define affordable rent.

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 Hamilton County

Bachelor's degrees in Hamilton County

Bachelor's degrees, % of adults 25+
PeriodHamilton CountyKansasU.S.
2006–1015.1%30.8%28.4%
2010–1413.2%31.7%29.6%
2015–1918.8%33.6%32.1%
2020–2420.7%35.6%35.6%
Change+5.6 pts+4.8 pts+7.2 pts
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College degrees are relatively uncommon in Hamilton County: 20.7% of adults 25 and older hold a bachelor's or higher, well below the national share of 35.6%. Compared with other Kansas counties, Hamilton County has a lower share of college graduates than most.

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 Hamilton County

High school graduates, % of adults 25+
PeriodHamilton CountyKansasU.S.
2006–1080.6%89.5%84.9%
2010–1477.8%90.0%86.1%
2015–1980.9%90.8%87.7%
2020–2480.1%91.7%89.3%
Change−0.6 pts+2.2 pts+4.3 pts
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About one in five adults in Hamilton County never finished high school, well above the national share: only 80.1% have a diploma or equivalent, against 89.3% nationally. Only eight of Kansas' 105 counties have a lower share of high school graduates.

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 Hamilton County

Unemployment, % of the labor force
PeriodHamilton CountyKansasU.S.
2006–102.0%6.1%8.1%
2010–142.4%6.7%9.4%
2015–190.7%4.1%5.6%
2020–243.0%4.0%5.4%
Change+0.9 pts−2.1 pts−2.7 pts
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The job market in Hamilton County has been strong: just 3.0% of the labor force was out of work and looking, well below the national rate of 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).

Hamilton County compared with nearby counties

CountyHousehold sizeMedian ageSingle parentsRentersVacant homesMedian year builtMedian rentBachelor's degreeHigh school diplomaUnemployment
Hamilton County3.2833.720.1%22.9%24.0%1970$77320.7%80.1%3.0%
Kearny County2.6936.212.0%28.3%11.6%1973$1,03918.5%81.7%2.2%
Prowers County2.5137.411.5%32.9%14.5%1968$86519.2%86.8%5.0%
Finney County2.9233.315.9%35.1%10.0%1978$1,06918.5%70.8%3.8%
Bent County2.2842.714.6%34.8%12.8%1963$1,20316.0%83.6%6.0%
Otero County2.4741.012.9%31.1%14.6%1959$86220.0%88.8%6.8%
Hodgeman County2.3849.07.5%20.9%15.5%1957$93730.2%95.5%0.6%
Edwards County2.3544.611.8%20.8%24.5%1947$73619.7%85.7%7.8%
Stafford County2.4441.59.9%17.7%24.0%1951$67126.5%92.7%2.8%
Reno County2.3241.912.1%30.8%10.9%1963$93120.7%90.7%3.8%
Saguache County1.9850.110.4%23.1%13.4%1987$94030.9%91.8%9.2%

All figures 2020–24.

Counties with similar populations: Valley County, ID · Charlton County, GA · Chase County, KS · Chase County, NE · Chattahoochee County, GA · Chautauqua County, KS · Cherokee County, IA · Union County, IA · Union County, IN · Union County, NM

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 Hamilton 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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