County · code 46039
Deuel CountySouth Dakota
Deuel County is a county in South Dakota with its county seat in Clear Lake. The county was formed in 1862 and became part of the state of South Dakota in 1889.
- Founded1862
- County seatClear Lake
- Land area623 sq mi + 14 sq mi water
- Population4,295 2020 Census
- Parcels mapped6,974 checked 15 October 2026
Where it is
Deuel on the map of South Dakota
South Dakota has 66 counties and county equivalents, each with its own records office. Shapes with a page are links.
History
Founded in 1862
An old deed may name a county that no longer exists, or a boundary that has since moved.
Deuel County was established in 1862 in Dakota Territory. On January 8, 1873, Deuel County lost territory to the creation of Grant County and Hamlin County, and also lost land to the Wahpeton and Sisseton Indian Reserve. Deuel became a county in the state of South Dakota on November 2, 1889.
- 1873
- 1889Became part of South Dakota Deuel became a county in the state of South Dakota. · U.S. Stat., vol. 25, ch. 180[1889]/pp. 676-684; U.S. Stat., vol. 26, no. 5/pp. 1548-1549; Swindler, 9:107-109; Van Zandt, 134
Land and parcels
What the maps cover in Deuel
Who publishes each layer, how good it is, and when we last checked.
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Parcels Good enough
Lot lines and tax-map numbers for 6,974 parcels from Deuel County. Drawn for tax purposes: usually within a few feet of a survey, but not a survey.
checked 15 October 2026 -
Address points Missing
No public address points layer found for Deuel County yet.
-
Buildings Reference
Roof outlines traced from aerial imagery from FEMA Response Geospatial Office with Oak Ridge National Laboratory (ORNL). Good for seeing what is on a lot; not accurate enough to set a fence from.
checked 18 October 2026
- Official
- from the office that keeps the record
- Good enough
- a reliable statewide or national copy
- Fallback
- a guide only; check the official record
- Missing
- nothing public found yet
People and land
Deuel by the Census
Source: US Census Bureau, 2020 Census; US Census Bureau, 2020 Gazetteer Files. Not endorsed or certified by the Census Bureau.
Rules and offices
Who to ask before you build, dig or sell
Official county pages only. We link to them; we do not copy them, because they change.
Inside a city or town, permits usually come from that city rather than the county.
Zoning and code
County government
- County government
The official website of Deuel County.
See your own lot on these maps
Open Deuel County on Parcel Chart's free map and click your parcel. Save it with a free account; the full record of your place (site map, projects, documents) is Pro, in early access.
Questions
Common questions about Deuel County
- When was Deuel County founded?
- Deuel County was founded in 1862.
- What is the county seat of Deuel County?
- The county seat of Deuel County is Clear Lake.
- Is there an online parcel map for Deuel County?
- Yes. Deuel County publishes a parcel map of 6,974 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
- Has Deuel County's boundary or name changed?
- Atlas of Historical County Boundaries records 2 changes for Deuel County. Since then the Atlas of Historical County Boundaries records 2 later changes, chiefly involving Grant County and Hamlin County.
- Who issues septic and well permits in Deuel County?
- The county's page on septic systems and wells: Health department: septic and well.
- Is my lot in a flood zone?
- We do not have flood maps for Deuel County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.
Nearby