Leavenworth County Demographics

A map of Leavenworth County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	64,298	62,503	77.4%	76.3%
Hispanic	6,278	5,602	7.6%	6.8%
Black	5,691	6,656	6.8%	8.1%
Multiracial	4,909	5,080	5.9%	6.2%
Asian	1,108	1,060	1.3%	1.3%
Native American/Other	839	980	1.0%	1.2%

Leavenworth County, Kansas has an estimated population of 83,123, a slight increase from the 81,881 recorded in the 2020 Census. The population is 77.4% White, 7.6% Hispanic, 6.8% Black, 5.9% Multiracial, 1.3% Asian, and 1.0% Native American/Other. This demographic dot map shows the population of Leavenworth County, with one dot drawn for each person counted by the Census, color-coded by race.

Leavenworth has become less racially diverse since the 2020 Census. It is considerably less diverse than Kansas overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Leavenworth County, that probability was 40.2% in 2020 and 38.8% in the most recent ACS estimates.

Leavenworth County is ranked the 6th most populous county in Kansas, out of 105 counties. Leavenworth County was ranked the 6th most populous county in the 2020 Census.

Leavenworth County's White Population

64,298 residents of Leavenworth County, or 77.4% of the population, identify as White. The share of White residents in Leavenworth County is slightly higher than in Kansas overall, where 72.7% of the population is White. Leavenworth County ranks 81st statewide in terms of White residents as a share of the population, out of 105 counties.

Since the 2020 Census, Leavenworth County's White population has grown by an estimated 2.9%. White residents' share of Leavenworth County's population has increased from 76.3% to 77.4%.

Leavenworth County is more White than neighboring Wyandotte County (36.4% White), Platte County (76.7% White), Johnson County (76.1% White), and Douglas County (76% White). Leavenworth County is less White than neighboring Jefferson County (91.1% White).

Leavenworth County's Black Population

5,691 residents of Leavenworth County, or 6.8% of the population, identify as Black. The share of Black residents in Leavenworth County is comparable to the share in Kansas overall, where 5.2% of the population is Black. Leavenworth County ranks 4th statewide in terms of Black residents as a share of the population, out of 105 counties.

Since the 2020 Census, Leavenworth County's Black population has declined by an estimated 14.5%. Black residents' share of Leavenworth County's population has decreased from 8.1% to 6.8%.

Leavenworth County is more Black than neighboring Jefferson County (0.4% Black), Johnson County (4.8% Black), and Douglas County (4.2% Black). Leavenworth County is less Black than neighboring Wyandotte County (18.1% Black), and Platte County (7.5% Black).

Leavenworth County's Asian Population

1,108 residents of Leavenworth County, or 1.3% of the population, identify as Asian. The share of Asian residents in Leavenworth County is comparable to the share in Kansas overall, where 2.9% of the population is Asian. Leavenworth County ranks 14th statewide in terms of Asian residents as a share of the population, out of 105 counties.

Since the 2020 Census, Leavenworth County's Asian population has grown by an estimated 4.5%. Asian residents' share of Leavenworth County's population has remained roughly unchanged at 1.3%.

Leavenworth County is more Asian than neighboring Jefferson County (0.2% Asian). Leavenworth County is less Asian than neighboring Wyandotte County (5.2% Asian), Platte County (2.5% Asian), Johnson County (5.2% Asian), and Douglas County (4.3% Asian).

Leavenworth County's Hispanic Population

6,278 residents of Leavenworth County, or 7.6% of the population, identify as Hispanic. The share of Hispanic residents in Leavenworth County is lower than in Kansas overall, where 13.6% of the population is Hispanic. Leavenworth County ranks 46th statewide in terms of Hispanic residents as a share of the population, out of 105 counties.

Since the 2020 Census, Leavenworth County's Hispanic population has grown by an estimated 12.1%. Hispanic residents' share of Leavenworth County's population has increased from 6.8% to 7.6%.

Leavenworth County is more Hispanic than neighboring Platte County (7.2% Hispanic), Jefferson County (3.5% Hispanic), and Douglas County (7.2% Hispanic). Leavenworth County is less Hispanic than neighboring Wyandotte County (34.1% Hispanic), and Johnson County (9.3% Hispanic).

Leavenworth County's Native American/Other Population

839 residents of Leavenworth County, or 1.0% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Leavenworth County is comparable to the share in Kansas overall, where 0.9% of the population is Native American/Other. Leavenworth County ranks 21st statewide in terms of Native American/Other residents as a share of the population, out of 105 counties.

Since the 2020 Census, Leavenworth County's Native American/Other population has declined by an estimated 14.4%. Native American/Other residents' share of Leavenworth County's population has remained roughly unchanged at 1.0%.

Leavenworth County is more Native American/Other than neighboring Platte County (0.9% Native American/Other), Jefferson County (0.7% Native American/Other), and Johnson County (0.5% Native American/Other). Leavenworth County is less Native American/Other than neighboring Wyandotte County (1.1% Native American/Other), and Douglas County (1.5% Native American/Other).

Leavenworth County's Multiracial Population

4,909 residents of Leavenworth County, or 5.9% of the population, identify as Multiracial. The share of Multiracial residents in Leavenworth County is comparable to the share in Kansas overall, where 4.8% of the population is Multiracial. Leavenworth County ranks 5th statewide in terms of Multiracial residents as a share of the population, out of 105 counties.

Since the 2020 Census, Leavenworth County's Multiracial population has declined by an estimated 3.4%. Multiracial residents' share of Leavenworth County's population has remained roughly unchanged at 5.9%.

Leavenworth County is more Multiracial than neighboring Wyandotte County (5.1% Multiracial), Platte County (5.2% Multiracial), Jefferson County (4% Multiracial), and Johnson County (4% Multiracial). Leavenworth County is less Multiracial than neighboring Douglas County (6.8% Multiracial).

Sources: Most recent population estimates are from the 2020-2024 American Community Survey 5-Year Estimates. 2020 population counts and map data are from 2020 Census State Redistricting Data. Geographic data are from Census TIGER/Line Shapefiles.