Clay County Demographics

A map of Clay County's Population by Race

Clay County, South Dakota had a population of 14,967 in 2020. It was 84.6% White, 1.6% Black, 2.4% Asian, 3.1% Hispanic, 4.0% Native American/Other, and 4.4% Multiracial. This map presents the population of Clay County, with one dot drawn for each person counted in the 2020 Census, color-coded by race.

Clay County is the 14th most populous county of the 66 counties in South Dakota.

Clay County's White Population

12,655 residents of Clay County identify as White, or 84.6%. This makes the White share of the population of Clay County roughly similar to the White share of the population of South Dakota (79.6% White). Of the 66 counties in South Dakota, Clay County is ranked #43 in terms of White residents as a share of the population.

Clay County is more White than neighboring Dixon County (82.8% White). Clay County is less White than neighboring Union County (89.2% White), Cedar County (95.6% White), Yankton County (86.6% White), and Turner County (92.7% White).

Clay County's Black Population

235 residents of Clay County identify as Black, or 1.6%. This makes the Black share of the population of Clay County roughly similar to the Black share of the population of South Dakota (2% Black). Of the 66 counties in South Dakota, Clay County is ranked #4 in terms of Black residents as a share of the population.

Clay County is more Black than neighboring Union County (1% Black), Cedar County (0.3% Black), Yankton County (1.3% Black), Turner County (0.4% Black), and Dixon County (0.3% Black).

Clay County's Asian Population

361 residents of Clay County identify as Asian, or 2.4%. This makes the Asian share of the population of Clay County roughly similar to the Asian share of the population of South Dakota (1.5% Asian). Of the 66 counties in South Dakota, Clay County is ranked #3 in terms of Asian residents as a share of the population.

Clay County is more Asian than neighboring Union County (1.5% Asian), Cedar County (0.1% Asian), Yankton County (0.6% Asian), Turner County (0.1% Asian), and Dixon County (0.3% Asian).

Clay County's Hispanic Population

458 residents of Clay County identify as Hispanic, or 3.1%. This makes the Hispanic share of the population of Clay County roughly similar to the Hispanic share of the population of South Dakota (4.4% Hispanic). Of the 66 counties in South Dakota, Clay County is ranked #22 in terms of Hispanic residents as a share of the population.

Clay County is more Hispanic than neighboring Cedar County (2.2% Hispanic), and Turner County (2.9% Hispanic). Clay County is less Hispanic than neighboring Union County (3.9% Hispanic), Yankton County (5.3% Hispanic), and Dixon County (14.2% Hispanic).

Clay County's Native American/Other Population

594 residents of Clay County identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other, or 4.0%. This makes the Native American/Other share of the population of Clay County roughly similar to the Native American/Other share of the population of South Dakota (8.7% Native American/Other). Of the 66 counties in South Dakota, Clay County is ranked #27 in terms of Native American/Other residents as a share of the population.

Clay County is more Native American/Other than neighboring Union County (1% Native American/Other), Cedar County (0.2% Native American/Other), Yankton County (3% Native American/Other), Turner County (0.8% Native American/Other), and Dixon County (0.5% Native American/Other).

Clay County's Multiracial Population

664 residents of Clay County identify as Multiracial, or 4.4%. This makes the Multiracial share of the population of Clay County roughly similar to the Multiracial share of the population of South Dakota (3.9% Multiracial). Of the 66 counties in South Dakota, Clay County is ranked #15 in terms of Multiracial residents as a share of the population.

Clay County is more Multiracial than neighboring Union County (3.4% Multiracial), Cedar County (1.6% Multiracial), Yankton County (3.2% Multiracial), Turner County (3% Multiracial), and Dixon County (1.9% Multiracial).

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