Cass County Demographics

A map of Cass County's Population by Race

Cass County, Nebraska has an estimated population of 27,161, a slight increase from the 26,598 recorded in the 2020 Census. The population is 90.5% White, 4.1% Hispanic, 3.6% Multiracial, 1.3% Native American/Other, 0.3% Black, and 0.3% Asian. This demographic dot map shows the population of Cass County, with one dot drawn for each person counted by the Census, color-coded by race.

Cass has become more racially diverse since the 2020 Census. It is considerably less diverse than Nebraska overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Cass County, that probability was 16.5% in 2020 and 17.9% in the most recent ACS estimates.

Cass County is ranked the 12th most populous county in Nebraska, out of 93 counties. Cass County was ranked the 12th most populous county in the 2020 Census.

Cass County's White Population

24,568 residents of Cass County, or 90.5% of the population, identify as White. The share of White residents in Cass County is significantly higher than in Nebraska overall, where 75.3% of the population is White. Cass County ranks 47th statewide in terms of White residents as a share of the population, out of 93 counties.

Since the 2020 Census, Cass County's White population has grown by an estimated 1.3%. White residents' share of Cass County's population has decreased from 91.2% to 90.5%.

Cass County is more White than neighboring Sarpy County (76.3% White), Otoe County (85.5% White), Douglas County (65.8% White), and Johnson County (77.6% White). Cass County is less White than neighboring Mills County (92.7% White).

Cass County's Black Population

82 residents of Cass County, or 0.3% of the population, identify as Black. The share of Black residents in Cass County is slightly lower than in Nebraska overall, where 4.6% of the population is Black. Cass County ranks 40th statewide in terms of Black residents as a share of the population, out of 93 counties.

Since the 2020 Census, Cass County's Black population has declined by an estimated 19.6%. Black residents' share of Cass County's population has remained roughly unchanged at 0.3%.

Cass County is less Black than neighboring Sarpy County (4% Black), Otoe County (1% Black), Douglas County (10.2% Black), Johnson County (4.7% Black), and Mills County (0.4% Black).

Cass County's Asian Population

77 residents of Cass County, or 0.3% of the population, identify as Asian. The share of Asian residents in Cass County is slightly lower than in Nebraska overall, where 2.6% of the population is Asian. Cass County ranks 37th statewide in terms of Asian residents as a share of the population, out of 93 counties.

Since the 2020 Census, Cass County's Asian population has declined by an estimated 25.2%. Asian residents' share of Cass County's population has remained roughly unchanged at 0.3%.

Cass County is more Asian than neighboring Otoe County (0.2% Asian). Cass County is less Asian than neighboring Sarpy County (2.8% Asian), Douglas County (4.4% Asian), Johnson County (0.8% Asian), and Mills County (0.5% Asian).

Cass County's Hispanic Population

1,110 residents of Cass County, or 4.1% of the population, identify as Hispanic. The share of Hispanic residents in Cass County is lower than in Nebraska overall, where 12.7% of the population is Hispanic. Cass County ranks 53rd statewide in terms of Hispanic residents as a share of the population, out of 93 counties.

Since the 2020 Census, Cass County's Hispanic population has grown by an estimated 12.3%. Hispanic residents' share of Cass County's population has remained roughly unchanged at 4.1%.

Cass County is more Hispanic than neighboring Mills County (3.9% Hispanic). Cass County is less Hispanic than neighboring Sarpy County (11.6% Hispanic), Otoe County (9% Hispanic), Douglas County (14.5% Hispanic), and Johnson County (11.9% Hispanic).

Cass County's Native American/Other Population

357 residents of Cass County, or 1.3% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Cass County is comparable to the share in Nebraska overall, where 1% of the population is Native American/Other. Cass County ranks 33rd statewide in terms of Native American/Other residents as a share of the population, out of 93 counties.

Since the 2020 Census, Cass County's Native American/Other population has grown by an estimated 91.9%. Native American/Other residents' share of Cass County's population has increased from 0.7% to 1.3%.

Cass County is more Native American/Other than neighboring Sarpy County (0.9% Native American/Other), Otoe County (0.2% Native American/Other), Douglas County (0.6% Native American/Other), and Mills County (0.2% Native American/Other). Cass County is less Native American/Other than neighboring Johnson County (2.4% Native American/Other).

Cass County's Multiracial Population

967 residents of Cass County, or 3.6% of the population, identify as Multiracial. The share of Multiracial residents in Cass County is comparable to the share in Nebraska overall, where 3.8% of the population is Multiracial. Cass County ranks 13th statewide in terms of Multiracial residents as a share of the population, out of 93 counties.

Since the 2020 Census, Cass County's Multiracial population has remained roughly the same. Multiracial residents' share of Cass County's population has remained roughly unchanged at 3.6%.

Cass County is more Multiracial than neighboring Johnson County (2.6% Multiracial), and Mills County (2.3% Multiracial). Cass County is less Multiracial than neighboring Sarpy County (4.5% Multiracial), Otoe County (4% Multiracial), and Douglas County (4.5% 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.