Williams County Demographics

A map of Williams County's Population by Race

Williams County, North Dakota had a population of 40,950 in 2020. It was 75.1% White, 5.0% Black, 1.5% Asian, 9.5% Hispanic, 3.4% Native American/Other, and 5.5% Multiracial. This map presents the population of Williams County, with one dot drawn for each person counted in the 2020 Census, color-coded by race.

Williams County is the 5th most populous county of the 53 counties in North Dakota.

Williams County's White Population

30,761 residents of Williams County identify as White, or 75.1%. This makes the White share of the population of Williams County slightly less than the White share of the population of North Dakota (81.7% White). Of the 53 counties in North Dakota, Williams County is ranked #48 in terms of White residents as a share of the population.

Williams County is more White than neighboring McKenzie County (69.8% White), and Mountrail County (56.5% White). Williams County is less White than neighboring Divide County (92.2% White), Burke County (93.1% White), and Sheridan County (89.6% White).

Williams County's Black Population

2,041 residents of Williams County identify as Black, or 5.0%. This makes the Black share of the population of Williams County roughly similar to the Black share of the population of North Dakota (3.4% Black). Of the 53 counties in North Dakota, Williams County is ranked #2 in terms of Black residents as a share of the population.

Williams County is more Black than neighboring Divide County (1% Black), McKenzie County (1.5% Black), Burke County (0.5% Black), Sheridan County (0.4% Black), and Mountrail County (1.2% Black).

Williams County's Asian Population

612 residents of Williams County identify as Asian, or 1.5%. This makes the Asian share of the population of Williams County roughly similar to the Asian share of the population of North Dakota (1.7% Asian). Of the 53 counties in North Dakota, Williams County is ranked #5 in terms of Asian residents as a share of the population.

Williams County is more Asian than neighboring Divide County (0.5% Asian), McKenzie County (1.2% Asian), Burke County (0.5% Asian), Sheridan County (0.4% Asian), and Mountrail County (1.1% Asian).

Williams County's Hispanic Population

3,897 residents of Williams County identify as Hispanic, or 9.5%. This makes the Hispanic share of the population of Williams County slightly larger than the Hispanic share of the population of North Dakota (4.3% Hispanic). Of the 53 counties in North Dakota, Williams County is ranked #3 in terms of Hispanic residents as a share of the population.

Williams County is more Hispanic than neighboring Divide County (2.4% Hispanic), Burke County (2.7% Hispanic), Sheridan County (3% Hispanic), and Mountrail County (7.8% Hispanic). Williams County is less Hispanic than neighboring McKenzie County (10.4% Hispanic).

Williams County's Native American/Other Population

1,387 residents of Williams County identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other, or 3.4%. This makes the Native American/Other share of the population of Williams County roughly similar to the Native American/Other share of the population of North Dakota (5.1% Native American/Other). Of the 53 counties in North Dakota, Williams County is ranked #13 in terms of Native American/Other residents as a share of the population.

Williams County is more Native American/Other than neighboring Divide County (1.1% Native American/Other), Burke County (1.2% Native American/Other), and Sheridan County (1.8% Native American/Other). Williams County is less Native American/Other than neighboring McKenzie County (12.9% Native American/Other), and Mountrail County (28.3% Native American/Other).

Williams County's Multiracial Population

2,252 residents of Williams County identify as Multiracial, or 5.5%. This makes the Multiracial share of the population of Williams County roughly similar to the Multiracial share of the population of North Dakota (3.9% Multiracial). Of the 53 counties in North Dakota, Williams County is ranked #2 in terms of Multiracial residents as a share of the population.

Williams County is more Multiracial than neighboring Divide County (2.7% Multiracial), McKenzie County (4.2% Multiracial), Burke County (2% Multiracial), Sheridan County (4.8% Multiracial), and Mountrail County (5.2% Multiracial).

Source: 2020 Census State Redistricting Data and Census TIGER/Line Shapefiles.