Roberts County, South Dakota Demographics 2026

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

Roberts County, South Dakota has a population of 10,221, the 18th most populous county in South Dakota. The median household income is $65,130 and the median home value is $154,500. The poverty rate is 15.7%.

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

Roberts County Quick Facts

Population 10,221

Median Household Income $65,130

Median Home Value $154,500

Poverty Rate 15.7%

Unemployment Rate 6.0%

Median Age 38.5 years

Homeownership Rate 71.2%

Affordability Ratio 2.4x

Bachelor's Degree+ 18.6%

High School Graduation 91.5%

Cities/Places 13

Population 10,221 18th of 66

Median Income $65,130 13% lower than state

Poverty Rate 15.7%

Unemployment 6.0%

How Roberts 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	10,219	10,221	+0.0%
Median household income	$63,691	$65,130	+2.3%
Median home value	$139,100	$154,500	+11.1%

Median Household Income

Roberts

$65,130

$75,081

National

$80,734

Median Home Value

Roberts

$154,500

$257,400

National

$332,700

Economy & Housing

Household Income Distribution

Under $25K 16.3%

$25K-$50K 21.2%

$50K-$100K 34.5%

$100K+ 28.1%

Detailed income brackets

Under $10K

4.8%

$10K-$15K

2.9%

$15K-$20K

5.4%

$20K-$25K

3.2%

$25K-$30K

3.3%

$30K-$35K

4.7%

$35K-$40K

4.1%

$40K-$45K

5.0%

$45K-$50K

4.1%

$50K-$60K

7.5%

$60K-$75K

12.0%

$75K-$100K

14.9%

$100K-$125K

8.5%

$125K-$150K

6.4%

$150K-$200K

7.6%

$200K+

5.7%

Employment

6.0% Unemployment Rate State: 2.9%|National: 5.2%

60.2% Labor Force Participation

Housing Overview

Owner 71.2%

Renter 28.8%

Affordability Index Very Affordable

2.4x home value to income ratio

Median gross rent $658/mo 12.1% of median household income annually

People & Demographics

Age Distribution

Under 18

28.2%

18-34

17.7%

35-54

20.1%

55-74

25.1%

75+

8.9%

Race & Ethnicity

Diversity Index

High Diversity

A diverse community with significant representation from multiple racial and ethnic groups.

State average: 35 | National average: 61

Education

Educational Attainment (Adults 25+)

Cities & Places in Roberts County

City	Population	Median Income	Poverty	Home Value
Sisseton	2,670	$48,875	18.8%	$109,200
Agency Village	980	$50,625	27.3%	$257,100
Rosholt	428	$64,861	13.0%	$116,400
Wilmot	381	$59,583	12.5%	$78,300
Summit	359	$60,000	14.5%	$98,100
New Effington	269	$50,208	20.7%	$68,000
Peever	145	$41,750	42.1%	$38,600
Long Hollow	128	N/A	56.3%	N/A
Peever Flats	119	$60,375	9.2%	N/A
Claire City	107	$62,500	15.9%	$77,100
Corona	87	$65,000	0.0%	$85,000
Ortley	73	$31,806	47.9%	$44,200
White Rock	12	$43,750	58.3%	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

Roberts County is located in South Dakota with a total population of 10,221. It is the 18th most populous county out of 66 in South Dakota. The county encompasses 13 Census-designated places.

Age Demographics

The median age in Roberts County is 38.5 years. This is 1% higher than the state median of 38.0 years. With 28.2% of the population under 18, Roberts County has a notably young demographic profile, suggesting a family-oriented community.

Economy, Income & Housing

The median household income in Roberts County is $65,130. 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 15.7%. This is 32% higher than the state poverty rate of 11.9%. The unemployment rate is 6.0%. This is 104% higher than the state rate of 2.9%. The median home value is $154,500. Housing costs are 40% lower than the state median of $257,400. With a home-value-to-income ratio of just 2.4x, Roberts County is one of the most affordable housing markets in the area. 71.2% of occupied housing units are owner-occupied. This homeownership rate is 4% higher than the state average of 68.6%.

Race & Ethnicity

The largest racial or ethnic group in Roberts County is White (non-Hispanic), making up 56.5% of the population. Hispanic or Latino residents account for 2.6%. The Black or African American population (0.3%) is well below the state average of 2.1%.

Education

18.6% of residents aged 25 and older hold a bachelor's degree or higher. This is 42% 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 91.5%.

Data Sources & Methodology

All figures for Roberts 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 Roberts County, South Dakota?

Roberts County has a population of 10,221, making it the 18th most populous county in South Dakota.

What is the median income in Roberts County?

The median household income in Roberts County is $65,130 with a poverty rate of 15.7%.

How many cities are in Roberts County, South Dakota?

Roberts County contains 13 Census-designated places.