Williams 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 Williams County, ND population was 38,460. The White Alone racial group had the highest population (30.73K) and constituted 79.90% of the total Williams County population. The Some Other Race Alone racial group had the second highest population (2.23K) and constituted 5.80% of the population. The third highest racial group was Two Or More Races (2.15K), constituting 5.59% of the population.

The population of the Non-Hispanic White Alone ethnicity group was 29.58K and constituted 76.92% of the population. The population of the Hispanic or Latino of All Races ethnicity group was (3.46K) and constituted 9.00% 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.

Williams County, North Dakota Population By Race in 2021
White Alone
Some Other Race Alone
Two Or More Races
Black or African American Alone
American Indian and Alaska Native Alone
Asian Alone
Native Hawaiian And Pacific Islander Alone
Williams County, North Dakota Population By Ethnicity in 2021
Non-Hispanic White Alone
Hispanic or Latino of All Races
Williams County, North Dakota Population By Race in 2021
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Race Population % of Total Pop.
White Alone 30729 79.90
Some Other Race Alone 2231 5.80
Two Or More Races 2149 5.59
Black or African American Alone 1850 4.81
American Indian and Alaska Native Alone 958 2.49
Asian Alone 455 1.18
Native Hawaiian And Pacific Islander Alone 88 0.23
Williams County, North Dakota Population By Ethnicity in 2021
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Ethnicity Population % of Total Pop.
Non-Hispanic White Alone 29582 76.92
Hispanic or Latino of All Races 3460 9.00