Demographics of Leavenworth County, Kansas

Leavenworth County, Kansas had 84,590 people on July 1, 2025, by the Census Bureau’s estimate: +2,616 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.

Leavenworth County, in four figures

84,590
Population: July 1, 2025, Vintage 2025 estimate.; +3.2%
Change since July 2020: +2,616 people.; 38.0 ±0.5
Median age: ACS 2020–⁠2024.; $89,218 ±$5,420
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.

Leavenworth County, Kansas's population grew 3.2% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Leavenworth 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).

Source: The Census Bureau

About this chart

The figures

Leavenworth County, Kansas's population grew 3.2% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Leavenworth 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	81,974	100.0	100.0
2021	82,409	100.5	100.2
2022	82,822	101.0	100.7
2023	83,564	101.9	101.6
2024	84,344	102.9	102.5
2025	84,590	103.2	103.1

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Population of Leavenworth 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	81,974	+65	+25	−5	+14
2021	82,409	+435	+136	+2	+213
2022	82,822	+413	+8	+43	+414
2023	83,564	+742	+172	+175	+411
2024	84,344	+780	+180	+205	+395
2025	84,590	+246	+176	+127	−63

Age, 2020–2024

The median age is 38.0 ±0.5: for men 37.2 ±0.4 and for women 39.4 ±0.4. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Leavenworth County by age, ACS 2020–2024
Age	People	Share	Kansas	United States
Under 5	5,011 ±161	6.0% ±0.2	6.0% ±<0.1	5.6% ±<0.1
5 to 17	14,640 ±598	17.6% ±0.7	17.8% ±0.1	16.3% ±<0.1
18 to 24	6,498 ±536	7.8% ±0.6	10.2% ±0.1	9.1% ±<0.1
25 to 44	22,951 ±714	27.6% ±0.9	25.8% ±0.1	26.9% ±<0.1
45 to 64	20,656 ±707	24.8% ±0.9	23.3% ±0.1	24.8% ±<0.1
65 and over	13,367 ±671	16.1% ±0.8	17.0% ±0.2	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $89,218 ±$5,420, and income per person $40,555 ±$1,305, in 2024 dollars. The median is $74,275 ±$475 in Kansas and $80,734 ±$166 in the United States.

Households by income

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Households in Leavenworth County by income, ACS 2020–2024
Household income	Households	Share	Kansas	United States
Under $25,000	3,382 ±502	11.2% ±1.7	13.9% ±0.3	14.6% ±<0.1
$25,000 to $49,999	4,760 ±585	15.8% ±1.9	18.9% ±0.3	16.7% ±<0.1
$50,000 to $74,999	4,823 ±606	16.0% ±2.0	17.7% ±0.3	15.5% ±<0.1
$75,000 to $99,999	4,012 ±477	13.3% ±1.6	13.5% ±0.3	12.6% ±<0.1
$100,000 to $149,999	6,043 ±613	20.0% ±2.0	17.7% ±0.3	17.5% ±<0.1
$150,000 to $199,999	3,600 ±417	11.9% ±1.4	8.8% ±0.2	9.6% ±<0.1
$200,000 or more	3,544 ±405	11.7% ±1.3	9.6% ±0.2	13.4% ±0.1

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).

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Poverty rate in Leavenworth County by age, ACS 2020–2024
Age	Below poverty	Rate	Kansas	United States
All ages	6,862 ±993	8.8% ±1.3	11.3% ±0.2	12.5% ±0.1
Under 18	1,594 ±343	8.2% ±1.8	13.1% ±0.4	16.1% ±0.1
18 to 59	3,906 ±665	9.5% ±1.6	11.5% ±0.2	11.6% ±0.1
60 and over	1,362 ±274	7.6% ±1.5	9.0% ±0.3	11.0% ±<0.1

Housing, 2020–2024

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Housing in Leavenworth County, ACS 2020–2024
Measure	Leavenworth County	Kansas	United States
Housing units	31,865 ±121	1,293,635 ±880	143,775,355 ±10,234
Occupied	94.7% ±1.2	90.8% ±0.3	89.9% ±0.1
Vacant	5.3% ±1.2	9.2% ±0.3	10.1% ±0.1
Owner occupied	69.3% ±1.7	67.2% ±0.4	65.2% ±0.3
Renter occupied	30.7% ±2.0	32.8% ±0.3	34.8% ±0.1
Median home value	$282,900 ±$9,484	$217,200 ±$1,343	$332,700 ±$236
Median gross rent	$1,219 ±$61	$1,060 ±$7	$1,413 ±$2
Median year built	1982 ±2	1976 ±1	1980 ±1

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

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People in Leavenworth County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Kansas	United States
Hispanic or Latino	6,278 ±0	7.6% ±<0.1	13.6% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	64,298 ±409	77.4% ±0.5	72.7% ±0.1	57.4% ±<0.1
Black alone, not Hispanic	5,691 ±494	6.8% ±0.6	5.2% ±0.1	11.9% ±<0.1
Asian alone, not Hispanic	1,108 ±176	1.3% ±0.2	2.9% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	275 ±94	0.3% ±0.1	0.4% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 482	0% to 0.6%	0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	337 ±155	0.4% ±0.2	0.4% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	4,909 ±521	5.9% ±0.6	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).

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People in Leavenworth County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Kansas	United States
Born in the state	41,607 ±1,461	50.1% ±1.8	59.2% ±0.3	57.3% ±<0.1
Born in another state	36,265 ±1,317	43.6% ±1.6	32.4% ±0.2	26.9% ±<0.1
Born a citizen outside the states	2,282 ±495	2.7% ±0.6	1.1% ±<0.1	1.7% ±<0.1
Born abroad	2,969 ±583	3.6% ±0.7	7.4% ±0.1	14.1% ±<0.1
Naturalized citizens	1,465 ±299	1.8% ±0.4	3.2% ±0.1	7.4% ±<0.1
Not citizens	1,504 ±476	1.8% ±0.6	4.2% ±0.1	6.8% ±<0.1

Leavenworth County among the counties of Kansas

6th of 105 by population, July 2025. Every one is listed on the Kansas page.

Counties of Kansas near Leavenworth County in population, July 2025
County	July 2025	Change since 2020
Johnson County	636,906	+4.2%
Sedgwick County	538,433	+2.6%
Shawnee County	178,607	−0.1%
Wyandotte County	170,597	+1.0%
Douglas County	120,920	+1.8%
Leavenworth County	84,590	+3.2%
Riley County	72,598	+0.8%
Butler County	69,484	+3.1%
Reno County	61,539	−0.6%
Saline County	53,377	−1.6%
Crawford County	39,008	+0.1%

Elsewhere on the site

Rankings this appears in

No. 2 Counties in Kansas by median household income
No. 2 Counties in Kansas by median rent
No. 2 Counties in Kansas by per capita income
No. 3 Counties in Kansas by median home value
No. 5 Counties by population growth in Kansas
No. 6 Counties by population in Kansas

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

Compiled automatically from Census Bureau population estimates — counties and Puerto Rico municipios, with components of change and American Community Survey 5-year estimates — table-based Summary File by a checked SQL query · Editor: Kian O'Connor · How this site is built

Data retrieved September 25, 2026