Nemaha County Demographics

A map of Nemaha County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	9,477	9,622	93.3%	93.7%
Hispanic	265	266	2.6%	2.6%
Multiracial	169	243	1.7%	2.4%
Black	122	64	1.2%	0.6%
Native American/Other	71	43	0.7%	0.4%
Asian	56	35	0.6%	0.3%

Nemaha County, Kansas has an estimated population of 10,160, a slight decrease from the 10,273 recorded in the 2020 Census. The population is 93.3% White, 2.6% Hispanic, 1.7% Multiracial, 1.2% Black, 0.7% Native American/Other, and 0.6% Asian. This demographic dot map shows the population of Nemaha County, with one dot drawn for each person counted by the Census, color-coded by race.

Nemaha has become slightly more 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 Nemaha County, that probability was 12.1% in 2020 and 12.9% in the most recent ACS estimates.

Nemaha County is ranked the 38th most populous county in Kansas, out of 105 counties. Nemaha County was ranked the 38th most populous county in the 2020 Census.

Nemaha County's White Population

9,477 residents of Nemaha County, or 93.3% of the population, identify as White. The share of White residents in Nemaha County is significantly higher than in Kansas overall, where 72.7% of the population is White. Nemaha County ranks 6th statewide in terms of White residents as a share of the population, out of 105 counties.

Since the 2020 Census, Nemaha County's White population has declined by an estimated 1.5%. White residents' share of Nemaha County's population has remained roughly unchanged at 93.3%.

Nemaha County is more White than neighboring Jackson County (81.6% White), Brown County (81.5% White), and Richardson County (90.4% White). Nemaha County is less White than neighboring Pawnee County (93.9% White).

Nemaha County's Black Population

122 residents of Nemaha County, or 1.2% of the population, identify as Black. The share of Black residents in Nemaha County is slightly lower than in Kansas overall, where 5.2% of the population is Black. Nemaha County ranks 55th statewide in terms of Black residents as a share of the population, out of 105 counties.

Since the 2020 Census, Nemaha County's Black population has grown by an estimated 90.6%. Black residents' share of Nemaha County's population has increased from 0.6% to 1.2%.

Nemaha County is more Black than neighboring Pawnee County (0.1% Black), Jackson County (0.7% Black), Richardson County (0.2% Black), and Marshall County (0.7% Black). Nemaha County is less Black than neighboring Brown County (1.6% Black).

Nemaha County's Asian Population

56 residents of Nemaha County, or 0.6% of the population, identify as Asian. The share of Asian residents in Nemaha County is slightly lower than in Kansas overall, where 2.9% of the population is Asian. Nemaha County ranks 66th statewide in terms of Asian residents as a share of the population, out of 105 counties.

Since the 2020 Census, Nemaha County's Asian population has grown by an estimated 60.0%. Asian residents' share of Nemaha County's population has remained roughly unchanged at 0.6%.

Nemaha County is more Asian than neighboring Pawnee County (0% Asian), Jackson County (0.5% Asian), Brown County (0.3% Asian), Richardson County (0.1% Asian), and Marshall County (0.3% Asian).

Nemaha County's Hispanic Population

265 residents of Nemaha County, or 2.6% of the population, identify as Hispanic. The share of Hispanic residents in Nemaha County is considerably lower than in Kansas overall, where 13.6% of the population is Hispanic. Nemaha County ranks 93rd statewide in terms of Hispanic residents as a share of the population, out of 105 counties.

Since the 2020 Census, Nemaha County's Hispanic population has remained roughly the same. Hispanic residents' share of Nemaha County's population has remained roughly unchanged at 2.6%.

Nemaha County is more Hispanic than neighboring Pawnee County (1.9% Hispanic), and Richardson County (2.4% Hispanic). Nemaha County is less Hispanic than neighboring Jackson County (5.8% Hispanic), Brown County (4.7% Hispanic), and Marshall County (2.8% Hispanic).

Nemaha County's Native American/Other Population

71 residents of Nemaha County, or 0.7% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Nemaha County is comparable to the share in Kansas overall, where 0.9% of the population is Native American/Other. Nemaha County ranks 91st statewide in terms of Native American/Other residents as a share of the population, out of 105 counties.

Since the 2020 Census, Nemaha County's Native American/Other population has grown by an estimated 65.1%. Native American/Other residents' share of Nemaha County's population has remained roughly unchanged at 0.7%.

Nemaha County is more Native American/Other than neighboring Pawnee County (0% Native American/Other), and Marshall County (0.5% Native American/Other). Nemaha County is less Native American/Other than neighboring Jackson County (5.5% Native American/Other), Brown County (7.3% Native American/Other), and Richardson County (1.6% Native American/Other).

Nemaha County's Multiracial Population

169 residents of Nemaha County, or 1.7% of the population, identify as Multiracial. The share of Multiracial residents in Nemaha County is slightly lower than in Kansas overall, where 4.8% of the population is Multiracial. Nemaha County ranks 97th statewide in terms of Multiracial residents as a share of the population, out of 105 counties.

Since the 2020 Census, Nemaha County's Multiracial population has declined by an estimated 30.5%. Multiracial residents' share of Nemaha County's population has decreased from 2.4% to 1.7%.

Nemaha County is less Multiracial than neighboring Pawnee County (4.1% Multiracial), Jackson County (5.9% Multiracial), Brown County (4.7% Multiracial), Richardson County (5.2% Multiracial), and Marshall County (2.4% 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.