Demographics of Hamilton County, Kansas

Hamilton County, Kansas had 2,500 people on July 1, 2025, by the Census Bureau’s estimate: +11 since July 2020. Age, income, poverty, housing and origin below come from the American Community Survey, averaged over 2020–2024, each with its margin of error.

Hamilton County, in four figures

2,500
Population: July 1, 2025, Vintage 2025 estimate.; +0.4%
Change since July 2020: +11 people.; 32.1 ±4.4
Median age: ACS 2020–⁠2024.; $70,250 ±$13,794
Median household income: ACS 2020–⁠2024, in 2024 dollars.

Population, year by year

July 1 estimates from the Census Bureau’s Vintage 2025. Each year's change is births less deaths, net moves from abroad and net moves from elsewhere in the country, with the Bureau's small residual. The 2020 row's components run 3 months, from the April census to July 1.

Hamilton County, Kansas's population grew 0.4% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Hamilton County, Kansas's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).

U.S. Census Bureau — Census Bureau population estimates — counties and Puerto Rico municipios, with components of change

About this chart

The figures

Hamilton County, Kansas's population grew 0.4% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Hamilton County, Kansas's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).
July 1	Population	Index	United States
2020	2,489	100.0	100.0
2021	2,479	99.6	100.2
2022	2,458	98.8	100.7
2023	2,473	99.4	101.6
2024	2,509	100.8	102.5
2025	2,500	100.4	103.1

3 more columns on a wider screen

Population of Hamilton County, Kansas on July 1 of each year, Vintage 2025
July 1	Population	Change	Births less deaths	From abroad	From elsewhere in the country
2020	2,489	−30	−2	0	−24
2021	2,479	−10	+16	+11	−38
2022	2,458	−21	+10	+36	−73
2023	2,473	+15	+23	+44	−52
2024	2,509	+36	+20	+68	−53
2025	2,500	−9	+21	+31	−61

Age, 2020–2024

The median age is 32.1 ±4.4: for men 32.0 ±2.8 and for women 32.6 ±10.1. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

2 more columns on a wider screen

People in Hamilton County by age, ACS 2020–2024
Age	People	Share	Kansas	United States
Under 5	177 ±67	7.2% ±2.7	6.0% ±<0.1	5.6% ±<0.1
5 to 17	659 ±134	26.7% ±5.4	17.8% ±0.1	16.3% ±<0.1
18 to 24	235 ±90	9.5% ±3.7	10.2% ±0.1	9.1% ±<0.1
25 to 44	607 ±162	24.6% ±6.6	25.8% ±0.1	26.9% ±<0.1
45 to 64	502 ±114	20.3% ±4.6	23.3% ±0.1	24.8% ±<0.1
65 and over	291 ±83	11.8% ±3.4	17.0% ±0.2	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $70,250 ±$13,794, and income per person $29,091 ±$2,978, in 2024 dollars. The median is $74,275 ±$475 in Kansas and $80,734 ±$166 in the United States.

Households by income

2 more columns on a wider screen

Households in Hamilton County by income, ACS 2020–2024
Household income	Households	Share	Kansas	United States
Under $25,000	71 to 213	18.8% ±8.9	13.9% ±0.3	14.6% ±<0.1
$25,000 to $49,999	76 to 234	20.5% ±9.9	18.9% ±0.3	16.7% ±<0.1
$50,000 to $74,999	49 to 163	6.8% to 21.2%	17.7% ±0.3	15.5% ±<0.1
$75,000 to $99,999	20 to 92	2.8% to 12.0%	13.5% ±0.3	12.6% ±<0.1
$100,000 to $149,999	202 ±70	26.7% ±8.3	17.7% ±0.3	17.5% ±<0.1
$150,000 to $199,999	10 to 94	1.4% to 12.3%	8.8% ±0.2	9.6% ±<0.1
$200,000 or more	10 to 78	1.4% to 10.2%	9.6% ±0.2	13.4% ±0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Poverty by age

The poverty rate is the share of people whose family income is below the federal threshold for their family’s size, of everyone for whom the Bureau determines it (B17020).

2 more columns on a wider screen

Poverty rate in Hamilton County by age, ACS 2020–2024
Age	Below poverty	Rate	Kansas	United States
All ages	83 to 263	3.4% to 10.7%	11.3% ±0.2	12.5% ±0.1
Under 18	0 to 38	0% to 4.5%	13.1% ±0.4	16.1% ±0.1
18 to 59	9 to 169	0.8% to 14.1%	11.5% ±0.2	11.6% ±0.1
60 and over	19 to 121	5.2% to 27.6%	9.0% ±0.3	11.0% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Housing, 2020–2024

1 more column on a wider screen

Housing in Hamilton County, ACS 2020–2024
Measure	Hamilton County	Kansas	United States
Housing units	1,014 ±121	1,293,635 ±880	143,775,355 ±10,234
Occupied	74.7% ±7.3	90.8% ±0.3	89.9% ±0.1
Vacant	25.3% ±7.1	9.2% ±0.3	10.1% ±0.1
Owner occupied	77.1% ±6.8	67.2% ±0.4	65.2% ±0.3
Renter occupied	22.9% ±9.7	32.8% ±0.3	34.8% ±0.1
Median home value	$115,800 ±$14,362	$217,200 ±$1,343	$332,700 ±$236
Median gross rent	$455 to $1,363	$1,060 ±$7	$1,413 ±$2
Median year built	1970 ±4	1976 ±1	1980 ±1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Occupied and vacant are shares of all housing units; owner and renter occupied are shares of occupied units. Value and rent are medians in 2024 dollars.

Origin and place of birth, 2020–2024

Hispanic or Latino origin is not a race in the Census Bureau’s tables. Here the people of Hispanic origin, of any race, are one row, and everyone else is counted by race alone (B03002), so the rows add to the whole.

Hispanic origin and race

2 more columns on a wider screen

People in Hamilton County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Kansas	United States
Hispanic or Latino	1,088 ±188	44.0% ±7.6	13.6% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	1,341 ±179	54.3% ±7.2	72.7% ±0.1	57.4% ±<0.1
Black alone, not Hispanic	0 to 10	0% to 0.4%	5.2% ±0.1	11.9% ±<0.1
Asian alone, not Hispanic	0 to 11	0% to 0.4%	2.9% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	0 to 11	0% to 0.4%	0.4% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 11	0% to 0.4%	0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	0 to 11	0% to 0.4%	0.4% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	0 to 91	0% to 3.7%	4.8% ±0.1	4.3% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Place of birth and citizenship

“Born a citizen outside the states” counts people born in Puerto Rico, the island areas, or abroad to American parents. Naturalized citizens and those who are not citizens together make up the people born abroad (B05002).

2 more columns on a wider screen

People in Hamilton County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Kansas	United States
Born in the state	1,284 ±227	52.0% ±9.2	59.2% ±0.3	57.3% ±<0.1
Born in another state	643 ±189	26.0% ±7.6	32.4% ±0.2	26.9% ±<0.1
Born a citizen outside the states	0 to 11	0% to 0.4%	1.1% ±<0.1	1.7% ±<0.1
Born abroad	544 ±167	22.0% ±6.8	7.4% ±0.1	14.1% ±<0.1
Naturalized citizens	17 to 109	0.7% to 4.4%	3.2% ±0.1	7.4% ±<0.1
Not citizens	481 ±162	19.5% ±6.6	4.2% ±0.1	6.8% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Hamilton County among the counties of Kansas

91st of 105 by population, July 2025. Every one is listed on the Kansas page.

Counties of Kansas near Hamilton County in population, July 2025
County	July 2025	Change since 2020
Edwards County	2,640	−8.6%
Gove County	2,631	−3.0%
Ness County	2,617	−2.1%
Cheyenne County	2,604	−0.3%
Chase County	2,572	−0.1%
Hamilton County	2,500	+0.4%
Morton County	2,470	−8.4%
Elk County	2,458	−0.9%
Kiowa County	2,432	−1.0%
Rawlins County	2,431	−5.3%
Sheridan County	2,427	−0.8%

Elsewhere on the site

Sources

Census Bureau population estimates — counties and Puerto Rico municipios, with components of change — U.S. Census Bureau · U.S. Government work · retrieved September 25, 2026
American Community Survey 5-year estimates — table-based Summary File · U.S. Government work

Data retrieved September 25, 2026