Roberts County, South Dakota Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 18th-largest in South Dakota
The population of Roberts County, South Dakota is 10,219 as of the 2023 American Community Survey, making it the 18th-largest county in South Dakota. The median household income is $63,691, the median home value is $139,100, and the median age is 37.9.
The population of Roberts County has grown 0.9% since 2010 (10,189 → 10,283), a +0.07% annualized rate.
10,219
Population
+0.07%
Annual growth
9
People / sq mi
$63,691
Median Income
$139,100
Median Home Value
Roberts County covers 1,101 sq mi of land at 9.3 people per square mile.
About Roberts County, SD
Roberts County is a county in South Dakota with a population of 10,219. It ranks #18 among counties in South Dakota by population. The median age is 37.9, in line with the national median. The population is 51.5% male and 48.5% female.
The median household income in Roberts County is $63,691, below the US median of $74,580. 13.8% of residents live below the federal poverty level. Home values sit at a median of $139,100, with monthly rent averaging $656. The homeownership rate of 69.4% is higher than the national rate of 64.8%.
Educational attainment in Roberts County reflects 18.3% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 7.7% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 16.4 minutes each way.
Roberts County Population History (2010-2024)
The county of Roberts County had a population of 10,189 in 2010 and 10,283 in 2024, a 0.9% growth over 14 years. The peak was 10,399 in 2019. Average annual growth rate: 0.07%.
10,283
Population (2024)
10,189
Population (2010)
10,399
Peak (2019)
0.07%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 10,189 |
| 2011 | 10,291 |
| 2012 | 10,323 |
| 2013 | 10,238 |
| 2014 | 10,280 |
| 2015 | 10,210 |
| 2016 | 10,192 |
| 2017 | 10,269 |
| 2018 | 10,358 |
| 2019 | 10,399 |
| 2020 | 10,262 |
| 2021 | 10,180 |
| 2022 | 10,157 |
| 2023 | 10,222 |
| 2024 | 10,283 |
Race & Ethnicity
| White | 57.9% |
| Black or African American | 0.3% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 39.3% |
| Two or More Races | 0.0% |
Age & Sex
37.9
Median Age
48.5%
Female
51.5%
Male
20.5%
Age 65+
Age Distribution
Children (under 15): 23.5% · Seniors (65+): 20.5%
Income & Poverty
| Median household income | $63,691$-8,730 vs state |
| Mean household income | $79,910 |
| Per-capita income | $31,216 |
| Poverty rate | 13.8%+6.4% vs state |
| Unemployment rate | 3.7% |
| Employment-to-population | 56.6% |
Top Industries by Employment
The largest employment sector in Roberts County is professional & business services, accounting for 24.6% of workers.
How residents commute
1.0%
Drive alone
4.4%
Carpool
77.2%
Public transit
7.7%
Work from home
16.4 min
Avg commute
Housing
$139,100$-97,700 vs state
Median home value
$656
Median rent
69.4%
Homeownership rate
4,823
Total housing units
75.8%
Occupied
24.2%
Vacant
30.6%
Renter-occupied
Social & access
80.1%
With health insurance
86.6%
With broadband internet
31.4%
Foreign-born
7.6%
Veterans (18+)
10.2%
With a disability
96.9%
Speak language other than English at home
Education
91.7%
High School+
18.3%
Bachelor's+
Largest cities in South Dakota
Other counties in South Dakota
Part of South Dakota
Metro areas in South Dakota
County rankings
Frequently Asked Questions
Roberts County, South Dakota has a population of 10,219 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 18th-largest county in South Dakota. Population density is 9 people per square mile.
The population of Roberts County has grown 0.9% since 2010 (10,189 → 10,283), a +0.07% annualized rate.
The median household income in Roberts County, South Dakota is $63,691, with mean (average) household income of $79,910 and per-capita income of $31,216. 13.8% of residents live below the federal poverty level.
In Roberts County, the largest racial and ethnic groups are White (57.9%), Hispanic or Latino (39.3%), Black or African American (0.3%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Roberts County, South Dakota is 37.9 years. Residents are 48.5% female and 51.5% male.
The median home value in Roberts County is $139,100 and median monthly rent is $656. 69.4% of occupied housing units are owner-occupied. The county has 4,823 total housing units, 24.2% of which are vacant.
The largest employment sector in Roberts County, South Dakota is professional, scientific, and management services, employing 24.6% of workers. The unemployment rate is 3.7%.
Sioux Falls is among the largest cities associated with Roberts County, South Dakota, with a population of 197,642.
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Statewide data for South Dakota
Population, race, income, age, and trends across South Dakota
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.