Walworth County Demographics

A map of Walworth County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	4,120	4,116	78.2%	77.4%
Native American/Other	573	795	10.9%	15.0%
Multiracial	499	286	9.5%	5.4%
Asian	32	11	0.6%	0.2%
Hispanic	29	99	0.6%	1.9%
Black	18	8	0.3%	0.2%

Walworth County, South Dakota has an estimated population of 5,271, a less than 1% change from the 5,315 recorded in the 2020 Census. The population is 78.2% White, 10.9% Native American/Other, 9.5% Multiracial, 0.6% Asian, 0.6% Hispanic, and 0.3% Black. This demographic dot map shows the population of Walworth County, with one dot drawn for each person counted by the Census, color-coded by race.

Walworth has become slightly less racially diverse since the 2020 Census. It is more diverse than South Dakota overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Walworth County, that probability was 37.5% in 2020 and 36.8% in the most recent ACS estimates.

Walworth County is ranked the 34th most populous county in South Dakota, out of 66 counties. Walworth County was ranked the 33rd most populous county in the 2020 Census.

Walworth County's White Population

4,120 residents of Walworth County, or 78.2% of the population, identify as White. The share of White residents in Walworth County is comparable to the share in South Dakota overall, where 79.8% of the population is White. Walworth County ranks 50th statewide in terms of White residents as a share of the population, out of 66 counties.

Since the 2020 Census, Walworth County's White population has remained roughly the same. White residents' share of Walworth County's population has increased from 77.4% to 78.2%.

Walworth County is less White than neighboring Campbell County (88.6% White), Potter County (93.3% White), Sully County (86.5% White), Edmunds County (93.8% White), and McPherson County (96.8% White).

Walworth County's Black Population

18 residents of Walworth County, or 0.3% of the population, identify as Black. The share of Black residents in Walworth County is comparable to the share in South Dakota overall, where 2.1% of the population is Black. Walworth County ranks 46th statewide in terms of Black residents as a share of the population, out of 66 counties.

Since the 2020 Census, Walworth County's Black population has grown by an estimated 125.0%. Black residents' share of Walworth County's population has remained roughly unchanged at 0.3%.

Walworth County is more Black than neighboring Campbell County (0% Black), Edmunds County (0% Black), and McPherson County (0% Black). Walworth County is less Black than neighboring Potter County (1.5% Black), and Sully County (4.5% Black).

Walworth County's Asian Population

32 residents of Walworth County, or 0.6% of the population, identify as Asian. The share of Asian residents in Walworth County is comparable to the share in South Dakota overall, where 1.4% of the population is Asian. Walworth County ranks 45th statewide in terms of Asian residents as a share of the population, out of 66 counties.

Since the 2020 Census, Walworth County's Asian population has grown by an estimated 190.9%. Asian residents' share of Walworth County's population has remained roughly unchanged at 0.6%.

Walworth County is more Asian than neighboring Campbell County (0.1% Asian), Sully County (0% Asian), and McPherson County (0% Asian). Walworth County is less Asian than neighboring Edmunds County (0.7% Asian).

Walworth County's Hispanic Population

29 residents of Walworth County, or 0.6% of the population, identify as Hispanic. The share of Hispanic residents in Walworth County is slightly lower than in South Dakota overall, where 4.8% of the population is Hispanic. Walworth County ranks 49th statewide in terms of Hispanic residents as a share of the population, out of 66 counties.

Since the 2020 Census, Walworth County's Hispanic population has declined by an estimated 70.7%. Hispanic residents' share of Walworth County's population has decreased from 1.9% to 0.6%.

Walworth County is more Hispanic than neighboring Potter County (0% Hispanic), Sully County (0% Hispanic), and McPherson County (0.1% Hispanic). Walworth County is less Hispanic than neighboring Campbell County (7.8% Hispanic), and Edmunds County (2.7% Hispanic).

Walworth County's Native American/Other Population

573 residents of Walworth County, or 10.9% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Walworth County is slightly higher than in South Dakota overall, where 7.5% of the population is Native American/Other. Walworth County ranks 14th statewide in terms of Native American/Other residents as a share of the population, out of 66 counties.

Since the 2020 Census, Walworth County's Native American/Other population has declined by an estimated 27.9%. Native American/Other residents' share of Walworth County's population has decreased from 15.0% to 10.9%.

Walworth County is more Native American/Other than neighboring Campbell County (0.5% Native American/Other), Potter County (2.1% Native American/Other), Sully County (4.3% Native American/Other), Edmunds County (0.6% Native American/Other), and McPherson County (0.3% Native American/Other).

Walworth County's Multiracial Population

499 residents of Walworth County, or 9.5% of the population, identify as Multiracial. The share of Multiracial residents in Walworth County is higher than in South Dakota overall, where 4.4% of the population is Multiracial. Walworth County ranks 8th statewide in terms of Multiracial residents as a share of the population, out of 66 counties.

Since the 2020 Census, Walworth County's Multiracial population has grown by an estimated 74.5%. Multiracial residents' share of Walworth County's population has increased from 5.4% to 9.5%.

Walworth County is more Multiracial than neighboring Campbell County (3% Multiracial), Potter County (2.5% Multiracial), Sully County (4.7% Multiracial), Edmunds County (2.2% Multiracial), and McPherson County (2.8% Multiracial).

Sources: Most recent population estimates are from the 2020-2024 American Community Survey 5-Year Estimates. 2020 population counts and map data are from 2020 Census State Redistricting Data. Geographic data are from Census TIGER/Line Shapefiles.