South Dakota, county records

Union County, South Dakota Public Records

Find the right office in Union County. Court cases, deeds and parcels, sheriff and jail records, vital records and county filings, each linked to the office that keeps them, with addresses and phone numbers.

Official sources first Free directory Links checked Sep. 13, 2026 Mobile friendly

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Most requested Union County records

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About public records in Union County

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County profile

Union County at a glance

State
South Dakota
County seat
Elk Point
Population
15,754
Area
467 sq mi
Founded
1862
Cities and towns
5

Union County offices and records

Sheriff & Law Enforcement. Union County Sheriff's Office is responsible for maintaining law and order in the unincorporated areas of Union County. Notable divisions within the office include the investigations unit and the K-9 unit, which assist in solving crimes and making sure of public safety.

Police Departments. Union County is served by several law enforcement agencies, including Union County Sheriff's Office and municipal police departments such as the North Sioux City Police Department and the Elk Point Police Department. Each agency has jurisdiction over its respective area, with the Sheriff's Office covering unincorporated regions and the city departments handling municipal law enforcement.

Law Enforcement & Arrests. Union County Sheriff's Office, located at 209 East Main Street, Elk Point, SD 57025, provides primary law enforcement services throughout the unincorporated areas of Union County. Union County Jail, operated by the Sheriff's Office at the same location, houses inmates awaiting trial or serving short-term sentences. Arrest records in Union County are considered public information under South Dakota Codified Law § 1-27-1, which governs public records access in the state.

Arrest Records. Arrest records in Union County are maintained by Union County Sheriff's Office.

Jail & Inmate Records. Inmate lookup is available through the Sheriff's Office, allowing the public to find information about current detainees.

Mugshots & Booking Photos. Mugshots in Union County are taken and retained by Union County Sheriff's Office during the booking process. These booking photos are part of the public record and can be accessed through the Sheriff's Office website or by request.

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Union County public-records FAQs

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Where can I find mugshots or booking photos in Union County, South Dakota?

Mugshots or booking photos in Union County, South Dakota, can be obtained from the Union County Sheriff's Office. The office is located at 209 East Main Street, Elk Point, SD 57025. You may also visit their official website to see if they have an online portal for accessing booking photos. For further assistance, you can contact the Sheriff's Office directly at (605) 356-2679.

How do I get a criminal background check in Union County, South Dakota?

To obtain a criminal background check in Union County, South Dakota, you need to contact the South Dakota Division of Criminal Investigation (DCI). The DCI provides background checks for the state, and you can request one through their website or by mail. Locally, you can visit the Union County Sheriff's Office for guidance on the process and any additional local requirements.

How can I look up sex offenders in Union County, South Dakota?

You can look up sex offenders in Union County, South Dakota, by accessing the South Dakota Sex Offender Registry. This registry is maintained by the South Dakota Division of Criminal Investigation and is available online. You can search for offenders by name, location, or proximity to a specific address. The registry provides detailed information about registered sex offenders in the area.

How do I register to vote in Union County, South Dakota?

You can register to vote in Union County by visiting the Union County Auditor's office at 209 East Main Street in Elk Point, by mail, or online at sdsos.gov/elections-voting. South Dakota requires registration at least 15 days before an election, and you must be 18 by election day and a resident of the county for 30 consecutive days. The County Auditor also processes absentee ballot requests, which can be submitted starting 46 days before any election through the online portal or by contacting the office at (605) 356-2101.

How do I look up property records in Union County, South Dakota?

Property records in Union County can be accessed through the Union County Register of Deeds office at 209 East Main Street, Elk Point, or online at www.unioncountysd.org. The county provides a free online search system for land records including deeds, mortgages, liens, and plat maps. For property tax assessment information and GIS mapping, contact the Director of Equalization (Assessor) at (605) 356-2101, which also offers online parcel search tools showing ownership, assessed values, and property characteristics.

How do I get a birth or death certificate in Union County, South Dakota?

Birth and death certificates can be obtained through the Union County Clerk of Courts at (605) 356-2101 or the South Dakota Department of Health Vital Records office in Pierre at (605) 773-4961. Certificates cost $15 for the first copy and $10 for additional copies ordered simultaneously. Processing takes 2-4 weeks for mail requests or can be immediate for walk-in requests. Online ordering is available through VitalChek at www.vitalchek.com with additional fees, and you must provide valid identification and proof of eligibility under SDCL § 34-25-16.

How do I find business license records in Union County, South Dakota?

Business records in Union County can be found through multiple sources. For formal business entities like corporations and LLCs, use the free South Dakota Secretary of State business search at sdsos.gov/business-services. Local DBA (fictitious name) filings may be available through the Union County Auditor at (605) 356-2101. For municipal business licenses within cities like North Sioux City, Beresford, or Elk Point, contact the respective city clerk offices. Building permits and zoning records are maintained by the Union County Director of Equalization and Zoning office.

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Cities, towns and neighboring counties

Use the city page when a record was created by a municipal police department or city office; use the county page for courts, deeds, vital records and jail custody.