Reviewed and updated October 9, 2026 by the SearchSystems.net editorial team. Every office link was opened and checked against the office's own site between September 24, 2026 and October 4, 2026.
Union County, South Dakota, has about 17,000 residents (2024 Census Bureau estimate). The title to a parcel in Union County is in the deed records of the Register of Deeds and its taxable value is set by the Director of Equalization; what is built on it is a matter for the city or the county. This guide says who keeps each record and where the page for each office is.
This guide covers deeds, assessed values, evictions and court cases, records requests, directory links and common questions.
Related guides: Union County public records, Union County arrest records, Union County warrants, Union County inmate search, Union County criminal records, South Dakota arrest records and South Dakota inmate search.
Deeds, Mortgages and Liens in Union County
Who owns a parcel in Union County and what it sold for are in the deed records of the Register of Deeds, with every lien or mortgage against the land.
SearchSystems opened and checked the Register of Deeds' page at unioncountysd.org/register-of-deeds (page title: Union County, South Dakota | Register of Deeds), phone (605) 356-2191, Monday - Friday 8:30am - 5:00pm, which answered when SearchSystems opened it on September 30, 2026.
Assessed Values and the Tax Roll in Union County
What a parcel in Union County is taxed on is the business of the Director of Equalization, which also keeps the parcel maps.
SearchSystems opened and checked the Director of Equalization's page at unioncountysd.org/director-of-equalization (page title: Union County, South Dakota | Director of Equalization), phone (605) 356-2252, 209 East Main Street, Suite 130 Elk Point, SD 57025, Monday - Friday 8:30am - 5:00pm, which answered when SearchSystems opened it on September 30, 2026.
Evictions and Court Cases About Land in Union County
Court cases about land from Union County, evictions among them, are filed in the Circuit Court for Union County.
The court records page SearchSystems verified for the county is at dakotaathome.sd.gov/search/a8ac8af5-881e-580b-8fa8-4a6d98d763ac, phone 605-356-2132.
Asking a County Office for a Record
Under the South Dakota Open Records Law a county office must answer a request within 10 business days, and it may charge copying and staff time. The county records request page SearchSystems verified is at unioncountysd.gov/register-of-deeds/recordsrequest (page title: RecordsRequest | Union County, South Dakota).
More Official Property and Land Records Pages for Union County
The SearchSystems directory, online since 1997, lists the official pages for Union County and South Dakota. These recorded document pages from its Union County listing were opened again on October 2, 2026 and each one still answers:
- RecordsRequest (unioncountysd.org)
- Register of Deeds (dakotaathome.sd.gov)
Frequently Asked Questions
Who records deeds in Union County?
The Register of Deeds, at unioncountysd.org/register-of-deeds, phone (605) 356-2191. Deeds, mortgages and liens on land in Union County are filed there, and the Director of Equalization (unioncountysd.org/director-of-equalization) has the assessment records.
Who sets the assessed value of a property in Union County?
The Director of Equalization, whose page SearchSystems verified is at unioncountysd.org/director-of-equalization.
Where are evictions from Union County filed?
In the Circuit Court for Union County. The file is public unless the court seals it.
Is this the official Union County website?
No. SearchSystems.net is an independent public records guide, online since 1997. It links to the official county, court and state offices described above and does not hold records, charge for them or take requests.