Cass County, North Dakota Population By Race and Ethnicity in 2021 (ACS-5Yrs)

Updated on February 28, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, the total Cass County, ND population was 182,992. The White Alone racial group had the highest population (155.81K) and constituted 85.15% of the total Cass County population. The Black or African American Alone racial group had the second highest population (11.18K) and constituted 6.11% of the population. The third highest racial group was Two Or More Races (6.87K), constituting 3.75% of the population.

The population of the Non-Hispanic White Alone ethnicity group was 153.39K and constituted 83.83% of the population. The population of the Hispanic or Latino of All Races ethnicity group was (5.34K) and constituted 2.92% of the population.

The charts and tables below shows the population and percentages by race and ethnicity.

Note: Missing racial or ethnicity groups means there was not enough information for an estimate.

You can also see similar information for other North Dakota counties, and for North Dakota.

Cass County, North Dakota Population By Race in 2021
White Alone
Black or African American Alone
Two Or More Races
Asian Alone
American Indian and Alaska Native Alone
Some Other Race Alone
Native Hawaiian And Pacific Islander Alone
Cass County, North Dakota Population By Ethnicity in 2021
Non-Hispanic White Alone
Hispanic or Latino of All Races
Cass County, North Dakota Population By Race in 2021
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Race Population % of Total Pop.
White Alone 155808 85.15
Black or African American Alone 11183 6.11
Two Or More Races 6865 3.75
Asian Alone 5975 3.27
American Indian and Alaska Native Alone 1981 1.08
Some Other Race Alone 1136 0.62
Native Hawaiian And Pacific Islander Alone 44 0.02
Cass County, North Dakota Population By Ethnicity in 2021
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Ethnicity Population % of Total Pop.
Non-Hispanic White Alone 153393 83.83
Hispanic or Latino of All Races 5339 2.92