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Roberts County, SD
14 cities and towns and 7 ZIP codes in Roberts County, South Dakota.
Population
10,221
Land area
1,101sq mi
People per sq mi
9
ZIP codes
7
Cities and towns in Roberts County
Roberts County at a glance
- The median household income is $65,130, 13% below the South Dakota median of $75,081.
- A typical owner-occupied home is valued at $154,500 (40% below South Dakota) and median rent is $658 a month.
- Its largest cities are Sisseton (2,670), Agency Village (980) and Rosholt (428).
Local data for Roberts County, SD
Counts from official public data
Housing and community stats
Roberts County, SD, American Community Survey 2020-2024
Median household income
$65,130
Poverty rate
15.7%
Median home value
$154,500
Prices -3.6% in a year
Median rent
$658/mo
Homeownership
71.2%
Bachelor's or higher
18.6%
Median age
38.5
Average commute
16.2 min
Largest reported origins and ancestries: German Americans (2,842), Norwegian Americans (1,577), Irish Americans (429).
Economy and federal money
Jobs, income, federal spending and pandemic loans
Unemployment rate
3.8%
Aug 2026, -0.4 pts in a year
Average annual pay
$47,899
3,420 jobs, 2025
Income per person
$58,604
BEA, 2024
Federal spending
$123M
FY 2026, $12,003 per person
PPP loans
$26.71M
956 loans, 3,102 jobs reported
Campaign donations
$34.32K
Itemized, 2026 cycle
How people get to work
Roberts County, SD, workers 16 and older. American Community Survey 5-year estimates
- Drove alone75.3%
- Carpooled8.1%
- Public transit1.1%
- Walked4.2%
- Bicycle0.1%
- Taxi, ride-hailing, motorcycle or other2.2%
- Worked from home9.0%
Average one-way commute: 16.2 minutes for people who do not work from home.
Environment and hazard risk
Roberts County, SD, from FEMA, NOAA and EPA
Natural hazard risk
Very Low
Top: winter weather
Storm events since 1996
627
Most often thunderstorm wind
Flood insurance policies
25
0.5% of homes, county
July high / Jan low
82° / 5°F
25.4 inches of rain a year
Hazards, floods and storm historyCheck a flood zone8 historic places
Health statistics
Share of adults in Roberts County, SD, CDC PLACES estimates
Obesity
43.0%
U.S. 33.3% +9.7 pts
Diabetes
16.3%
U.S. 12.1% +4.2 pts
Smoking
20.3%
U.S. 12.8% +7.5 pts
Uninsured (18-64)
10.4%
U.S. 11.1% -0.7 pts
Cities, towns and ZIP codes in Roberts County
Population shown
Frequently asked questions
- What is the largest city in Roberts County, SD?
- Sisseton is the largest city or town in Roberts County, with about 2,670 residents.
- How many ZIP codes are in Roberts County?
- Roberts County includes 7 ZIP Code Tabulation Areas, including 57224, 57227, 57255, 57257, 57260.
- What is the population of Roberts County, SD?
- About 10,221 people live in Roberts County, based on American Community Survey 5-year estimates.
- What counties border Roberts County?
- Roberts County borders Richland County, ND, Grant County, Day County, Big Stone County, MN, Marshall County, Sargent County, ND, Traverse County, MN.
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023