Dewey County, South Dakota
Dewey County, South Dakota · ZIP 57442, 57601, 57625
- Census data · ACS 2019-2023
- 5,322 (2024 estimate)Population
- 1,681Households
- $57,928Median household income
- $75,400Median home value
- 8Towns with a page
- 10ZIP codes
Dewey County in numbersOfficial sources, refreshed yearly
| Census | Population |
|---|---|
| 2000 | 5,972 |
| 2010 | 5,301 |
| 2020 | 5,239 |
As counted at each census, within the boundaries the area had then; the current estimate is in the glance card.
Sources: Census 2000 Summary File 1: total population, county level, state 46, retrieved November 14, 2026; Census 2010 Summary File 1: total population, county level, state 46, retrieved November 14, 2026; Census 2020 Redistricting Data (P.L. 94-171): total population, county level, state 46, retrieved November 14, 2026.
Median household income $57,928 · Share of households by income, American Community Survey 5-year 2019-2023, table S1901.
Source: American Community Survey 5-year subject table S1901 (household income) 2019–2023, county level, state 46, retrieved November 14, 2026.
- Owner occupied
- 1,033 units
- Renter occupied
- 648 units
- Vacancy rate
- 12.8%
Occupied housing units by tenure and the share of all units vacant, American Community Survey 5-year 2019-2023, table DP04.
Source: American Community Survey 5-year data profile 2019–2023, county level, state 46, retrieved November 14, 2026.
778 employees in 103 establishments with payroll in 2023, all sectors; employers themselves are not named in the source. County Business Patterns counts are published with noise.
Source: County Business Patterns 2023: employment by sector, county level, state 46, retrieved November 14, 2026.
| Measure | Dewey County | South Dakota |
|---|---|---|
| Population | 5,230 | 899,194 |
| Median household income | $57,928 | $72,421 |
| Median age | 27.6 | 37.7 |
| Median home value | $75,400 | $236,800 |
| Bachelor’s degree or higher | 17.3% | 31.1% |
| Foreign-born residents | 0.4% | 3.9% |
| Owner-occupied homes | 61.5% | 68.6% |
| Mean commute to work | 17.1 minutes | 17.6 minutes |
Source: American Community Survey 5-year data profile 2019–2023, county level, state 46, retrieved November 14, 2026.
Townships, towns and villages in Dewey County8 with a page · sort by any column
| Type | |||
|---|---|---|---|
| North Eagle Butte | Census designated place | 1,432 | 8.82 sq mi |
| Timber Lake | City | 537 | 0.61 sq mi |
| La Plant | Census designated place | 266 | 9.45 sq mi |
| Swift Bird | Census designated place | 183 | 0.49 sq mi |
| Isabel | Town | 155 | 0.84 sq mi |
| Whitehorse | Census designated place | 127 | 2.74 sq mi |
| Green Grass | Census designated place | 80 | 8.13 sq mi |
| Lantry | Census designated place | 3 | 0.42 sq mi |
Populations: Census Population Estimates, Vintage 2024: subcounty totals, state 46 (2024). Land areas: Census Gazetteer 2025: counties. A dash means the figure is not in the cited file.
County officialsFrom public records
No county official is published yet. Names appear once a researcher drafts them from the county’s own site and a second person approves; office contacts only, never personal details.
Across Dewey County
No job is posted in Dewey County’s towns yet. Employers post from their business dashboard; public job banks are added once their terms are recorded.
No upcoming event is listed in Dewey County's towns yet. Members and businesses add events from any town page.
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Neighboring counties
Neighboring counties
- Corson CountyPopulation 3,747 (2024 estimate)
- Haakon CountyPopulation 1,834 (2024 estimate)
- Potter CountyPopulation 2,402 (2024 estimate)
- Stanley CountyPopulation 3,015 (2024 estimate)
- Sully CountyPopulation 1,468 (2024 estimate)
- Walworth CountyPopulation 5,270 (2024 estimate)
- Ziebach CountyPopulation 2,418 (2024 estimate)
Sources: Census county adjacency file 2024, retrieved November 14, 2026; Census Population Estimates, Vintage 2024: subcounty totals, state 46, retrieved November 14, 2026.