Union County, SD Property Records
Property records in Union, South Dakota document ownership, land boundaries, transfers, liens, mortgages, plats, assessments, and property tax information for real estate within Union County. These records are useful for buyers, sellers, property owners, attorneys, lenders, and researchers who need to verify ownership, review legal descriptions, confirm tax status, or trace the history of a parcel.
Official records are maintained by Union County offices, including the Register of Deeds for recorded documents and county assessment or tax offices for valuation and tax details. Users can access official information through the county’s government resources, starting with the Union County Register of Deeds page for official property records. Some records may be searchable online, while others may require an in-person visit, written request, or applicable recording/copy fees.
Union County, SD Property Records & Statistics
Union County has a median rent of $816, above the South Dakota median of $708 but a little under the national $840.25. Renter-occupied housing makes up 20.86% of occupied homes, close to the state share of 21.46% and the national share of 21.81%, so the county has a typical mix of renters and owners.
Home values are the highest in the comparison. The median home value is $220,600, far above the state's $137,075 and the national median of $173,750. The median property tax rate of 1.07% is slightly below the state's 1.09% but above the national 0.74%, and because values are high, the dollar cost of property tax for owners is likely to be higher than in much of the state.
Income and employment are strong. The median household income of $84,083 is well above the state's $65,677.25 and the nation's $65,108. The unemployment rate is 1.66%, just under South Dakota's 1.72% and well below the national 2.87%.
Overall, the figures show a prosperous county with high incomes, low unemployment, and premium home values, where rents have risen above state levels and owning a home costs more than elsewhere in South Dakota.
Median Rent
Median Property Tax Rate
Median Home Value
Median Income
Unemployment Rate
Renter Occupied Housing
Property Records, Assessments, and Valuations in Union
Union County records span tax assessments, recorded deeds and mortgages, valuations, and foreclosure filings. The county has 13,432 total parcels, including 5,090 residential and 976 commercial parcels, and tax records cover 84.03% of the population for the 2024 assessment year. Recorded documents include 16,823 deeds and 15,333 mortgages, with valuation data for 4,531 properties.
| Key Data | Details |
|---|---|
| Total Parcels | 13,432 |
| Residential Parcels | 5,090 |
| Commercial Parcels | 976 |
| Tax Record Coverage | 84.03% |
| Assessment Year | 2024 |
| Deed Records | 16,823 |
| Mortgage Records | 15,333 |
| Properties with Valuation Data | 4,531 |
| Latest Valuation Update | August 17, 2025 |
| Notice of Sale Records | 1 |
How to Search Union County, SD Property Records
Union County property records are kept at the courthouse in Elk Point. The Union County Register of Deeds Office records deeds, mortgages, and other real estate documents, and its page also covers eRecording. The office is at 209 E Main Street, Elk Point, open Monday through Friday, 8:30 AM to 5:00 PM, and can be reached at 605-356-2191.
To search recorded documents online, use the South Dakota official records search. Union County deeds and mortgages in the index run from January 3, 2006 through July 31, 2025, and include 16,823 deeds and 15,333 mortgages. Foreclosure in South Dakota follows a judicial process, and the county has one Notice of Sale record, dated September 29, 2016.
Assessment information covers 13,432 parcels, including 5,090 residential and 976 commercial parcels. The assessment year is 2024, and the assessor's last update was April 14, 2025. Valuation data is available for 4,531 properties, most recently updated on August 17, 2025.
Begin with the property address, owner name, or parcel number, review the results, and open the record that matches. If a document isn't found online, call the Register of Deeds.
Union Registrar of Deeds
The Union County Probate Office is located at 209 E Main Street, Elk Point, SD, 57025 and can be reached at 605-356-2191. Office hours are Monday-Friday 8:30 AM – 5:00 PM. Records can be accessed through southdakota.thepublicindex.org or the official website unioncountysd.org.
Union County Register of Deeds Office
Union County Property Records FAQ
How can I search Union County property records by address?
Use the South Dakota official records search to find recorded documents connected to a property. For assessment information tied to an address, contact the county courthouse in Elk Point. The Union County Register of Deeds Office can be reached at 605-356-2191 for help.
How can I find property owners in Union County?
Owners appear on recorded deeds. Search them in the South Dakota official records search, where Union County deeds are available from January 3, 2006 through July 31, 2025. You can also call the Register of Deeds Office at 605-356-2191 or visit 209 E Main Street, Elk Point, during weekday business hours.
How can I check a property's assessed value in Union County?
Assessed values are part of the county's assessment records. The county is on the 2024 assessment year, with the assessor's latest update on April 14, 2025. Contact the Union County courthouse in Elk Point with the property address or parcel number to get the current assessed value and classification.
Where can I find Union County property tax bills and payment records?
Property tax bills are handled by the county Treasurer at the courthouse in Elk Point. Contact the county through the Register of Deeds Office at 605-356-2191 to be directed to the right desk, and have the parcel number or owner name ready when you call.
How can I find deeds and other recorded documents in Union County?
Deeds and mortgages are recorded with the Union County Register of Deeds Office, 209 E Main Street, Elk Point, open Monday through Friday, 8:30 AM to 5:00 PM. Search online through the South Dakota official records search, or use the office's page for eRecording information.
Where can I access Union County parcel maps and GIS information?
Union County has 13,432 parcels, and mapping is maintained through the county's offices in Elk Point. Call 605-356-2191 and ask which office provides parcel maps and GIS layers. Have the property address or parcel number ready so staff can direct you to the right map.
How can I check permits and zoning information in Union County?
Building and zoning rules outside city limits are handled by the county at the courthouse in Elk Point, while cities set their own rules within their boundaries. Call the courthouse through the Register of Deeds Office at 605-356-2191 for the right contact, and bring the property address or parcel number.
How can I create a list of property owners in Union County?
Records are organized by parcel and document, so lists are built property by property. Recorded owners appear in the South Dakota official records search. For larger requests, call the Register of Deeds Office at 605-356-2191 to ask what can be provided.