Sully County, South Dakota
5 public bodies govern here, 1 school district is based here, and USDA lists 0 farmers markets. Everything below says where it came from.
In four numbers
- People
- 1,526
- Median household income
- $72,578
- ±6,950
- Unemployed
- 0.0%
- 0 of 868 in the labour force
- Homes with broadband
- 79.6%
- 507 of 637 households
U.S. Census Bureau, American Community Survey 5-year estimates 2020-2024; read 2026-09-26. Percentages worked out here from the two counts shown.
Who governs here
County government 1
| Name | People | Office | Website |
|---|---|---|---|
| County of Sully | 1,476 (2021) | Po Box 265, Onida | Website |
Cities, towns and villages 2
| Name | People | Office | Website |
|---|---|---|---|
| City of Onida | 668 (2021) | Po Box 72, Onida | Website |
| Town of Agar | 69 (2021) | Po Box 123, Agar | — |
Special districts 2
| Name | What it does | Office | Website |
|---|---|---|---|
| Sully County Regional Railroad Authority | Miscellaneous commercial activities | Po Box 265, Onida | — |
| Sully County Conservation District | Soil and water conservation | Po Box 203, Onida | Website |
U.S. Census Bureau, 2022 Census of Governments, Government Units List (published August 2023); the file read 2026-09-26. Offices are placed by county; a special district’s territory can cross county lines. Each body posts its own meetings on its website where the Census records one.
School districts based here
Agar-Blunt-Onida School District 58-3
School district3 schools
500 8th St, Onida, SD, 57564
Its website — where its board posts meetings. Federal record.
National Center for Education Statistics, Common Core of Data 2024-25; read 2026-09-26.
Farmers markets
USDA’s directory lists no farmers market in this county. That is not the same as there being none: a market that never registered with USDA, and was not found by its 2023 web sweep, is not in the directory.
In the counties that border this one
Country Farmers' Market (Pierre)
Hyde County Farmers' Market ()
Which counties border which: U.S. Census Bureau, County Adjacency File (2024), the file read 2026-09-26. Bordering is not distance — counties that touch at one corner border each other.
USDA National Farmers Market Directory; read 2026-09-26.