Walworth County, South Dakota Demographics 2026

Name: Walworth County, South Dakota Demographics
Creator: U.S. Census Bureau
License: https://www.census.gov/data/developers/about/terms-of-service.html

Walworth County, South Dakota has a population of 5,271, the 34th most populous county in South Dakota. The median household income is $65,026 and the median home value is $136,600. The poverty rate is 14.9%.

Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes

Walworth County Quick Facts

Population 5,271

Median Household Income $65,026

Median Home Value $136,600

Poverty Rate 14.9%

Unemployment Rate 3.5%

Median Age 41.7 years

Homeownership Rate 76.2%

Affordability Ratio 2.1x

Bachelor's Degree+ 29.6%

High School Graduation 91.6%

Cities/Places 6

Population 5,271 34th of 66

Median Income $65,026 13% lower than state

Poverty Rate 14.9%

Unemployment 3.5%

How Walworth County Changed

Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.

Metric	2019–2023	2020–2024	Change
Population	5,298	5,271	-0.5%
Median household income	$62,722	$65,026	+3.7%
Median home value	$130,000	$136,600	+5.1%

Median Household Income

Walworth

$65,026

$75,081

National

$80,734

Median Home Value

Walworth

$136,600

$257,400

National

$332,700

Economy & Housing

Household Income Distribution

Under $25K 16.8%

$25K-$50K 21.3%

$50K-$100K 33.9%

$100K+ 28.1%

Detailed income brackets

Under $10K

4.4%

$10K-$15K

2.4%

$15K-$20K

5.5%

$20K-$25K

4.4%

$25K-$30K

5.0%

$30K-$35K

3.5%

$35K-$40K

2.9%

$40K-$45K

7.4%

$45K-$50K

2.5%

$50K-$60K

9.3%

$60K-$75K

11.1%

$75K-$100K

13.5%

$100K-$125K

8.9%

$125K-$150K

9.9%

$150K-$200K

4.4%

$200K+

4.9%

Employment

3.5% Unemployment Rate State: 2.9%|National: 5.2%

61.6% Labor Force Participation

Housing Overview

Owner 76.2%

Renter 23.8%

Affordability Index Very Affordable

2.1x home value to income ratio

Median gross rent $926/mo 17.1% of median household income annually

People & Demographics

Age Distribution

Under 18

23.7%

18-34

15.0%

35-54

23.6%

55-74

28.0%

75+

9.8%

Race & Ethnicity

Diversity Index

Low Diversity

A less diverse community where one racial or ethnic group represents a large majority.

State average: 35 | National average: 61

Education

Educational Attainment (Adults 25+)

Cities & Places in Walworth County

City	Population	Median Income	Poverty	Home Value
Mobridge	2,932	$65,357	18.3%	$136,800
Selby	702	$49,205	8.3%	$105,700
Akaska	104	$40,625	31.7%	$91,700
Glenham	95	$50,625	2.1%	$59,300
Java	78	$38,750	25.6%	$54,200
Lowry	1	N/A	0.0%	N/A

Explore South Dakota Rankings

Cities by Population All cities ranked by size Richest Cities Ranked by median income Most Educated By bachelor's degree rate Most Affordable By housing affordability

Population Overview

Walworth County is located in South Dakota with a total population of 5,271. It is the 34th most populous county out of 66 in South Dakota. The county encompasses 6 Census-designated places.

Age Demographics

The median age in Walworth County is 41.7 years. This is 10% higher than the state median of 38.0 years.

Economy, Income & Housing

The median household income in Walworth County is $65,026. This is 13% lower than the state median of $75,081. It is also 19% lower than the national median of $80,734. The poverty rate stands at 14.9%. This is 25% higher than the state poverty rate of 11.9%. The unemployment rate is 3.5%. This is 19% higher than the state rate of 2.9%. The median home value is $136,600. Housing costs are 47% lower than the state median of $257,400. With a home-value-to-income ratio of just 2.1x, Walworth County is one of the most affordable housing markets in the area. 76.2% of occupied housing units are owner-occupied. This homeownership rate is 11% higher than the state average of 68.6%.

Race & Ethnicity

The largest racial or ethnic group in Walworth County is White (non-Hispanic), making up 78.2% of the population. Asian residents account for 0.6%. The Black or African American population (0.3%) is well below the state average of 2.1%. The Hispanic or Latino population (0.5%) is well below the state average of 4.8%. The Asian population (0.6%) is well below the state average of 1.4%.

Education

29.6% of residents aged 25 and older hold a bachelor's degree or higher. This is 7% lower than the state rate of 31.9%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 91.6%.

Data Sources & Methodology

All figures for Walworth County come from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates, with comparisons drawn against South Dakota and national averages from the same dataset. See our methodology page for how each metric is defined, or data.census.gov for official tables with margins of error.

Frequently Asked Questions

What is the population of Walworth County, South Dakota?

Walworth County has a population of 5,271, making it the 34th most populous county in South Dakota.

What is the median income in Walworth County?

The median household income in Walworth County is $65,026 with a poverty rate of 14.9%.

How many cities are in Walworth County, South Dakota?

Walworth County contains 6 Census-designated places.