Brown County Demographics

A map of Brown County's Population by Race

Brown County, South Dakota had a population of 38,301 in 2020. It was 85.4% White, 1.4% Black, 2.4% Asian, 4.3% Hispanic, 3.2% Native American/Other, and 3.2% Multiracial. This map presents the population of Brown County, with one dot drawn for each person counted in the 2020 Census, color-coded by race.

Brown County is the 4th most populous county of the 66 counties in South Dakota.

Brown County's White Population

32,705 residents of Brown County identify as White, or 85.4%. This makes the White share of the population of Brown County slightly larger than the White share of the population of South Dakota (79.6% White). Of the 66 counties in South Dakota, Brown County is ranked #40 in terms of White residents as a share of the population.

Brown County is more White than neighboring Marshall County (83.6% White), and Day County (84.3% White). Brown County is less White than neighboring Dickey County (91.5% White), Spink County (94.2% White), and Edmunds County (94.8% White).

Brown County's Black Population

535 residents of Brown County identify as Black, or 1.4%. This makes the Black share of the population of Brown County roughly similar to the Black share of the population of South Dakota (2% Black). Of the 66 counties in South Dakota, Brown County is ranked #6 in terms of Black residents as a share of the population.

Brown County is more Black than neighboring Dickey County (0.4% Black), Spink County (0.4% Black), Marshall County (0.1% Black), Day County (0.1% Black), and Edmunds County (0.3% Black).

Brown County's Asian Population

918 residents of Brown County identify as Asian, or 2.4%. This makes the Asian share of the population of Brown County roughly similar to the Asian share of the population of South Dakota (1.5% Asian). Of the 66 counties in South Dakota, Brown County is ranked #4 in terms of Asian residents as a share of the population.

Brown County is more Asian than neighboring Dickey County (0.5% Asian), Spink County (0% Asian), Marshall County (0.3% Asian), Day County (0.3% Asian), and Edmunds County (0.6% Asian).

Brown County's Hispanic Population

1,659 residents of Brown County identify as Hispanic, or 4.3%. This makes the Hispanic share of the population of Brown County roughly similar to the Hispanic share of the population of South Dakota (4.4% Hispanic). Of the 66 counties in South Dakota, Brown County is ranked #15 in terms of Hispanic residents as a share of the population.

Brown County is more Hispanic than neighboring Dickey County (4% Hispanic), Spink County (2.2% Hispanic), Day County (2.8% Hispanic), and Edmunds County (1.5% Hispanic). Brown County is less Hispanic than neighboring Marshall County (5.9% Hispanic).

Brown County's Native American/Other Population

1,243 residents of Brown County identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other, or 3.2%. This makes the Native American/Other share of the population of Brown County slightly less than the Native American/Other share of the population of South Dakota (8.7% Native American/Other). Of the 66 counties in South Dakota, Brown County is ranked #28 in terms of Native American/Other residents as a share of the population.

Brown County is more Native American/Other than neighboring Dickey County (0.9% Native American/Other), Spink County (1% Native American/Other), and Edmunds County (1% Native American/Other). Brown County is less Native American/Other than neighboring Marshall County (7.5% Native American/Other), and Day County (9.9% Native American/Other).

Brown County's Multiracial Population

1,241 residents of Brown County identify as Multiracial, or 3.2%. This makes the Multiracial share of the population of Brown County roughly similar to the Multiracial share of the population of South Dakota (3.9% Multiracial). Of the 66 counties in South Dakota, Brown County is ranked #30 in terms of Multiracial residents as a share of the population.

Brown County is more Multiracial than neighboring Dickey County (2.8% Multiracial), Spink County (2.1% Multiracial), Marshall County (2.5% Multiracial), Day County (2.5% Multiracial), and Edmunds County (1.8% Multiracial).

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