How to Search Yankton County Records (Start Here)
South Dakota uses the Director of Equalization for property assessments — not a separate Assessor.
- Court records: Clerk of Courts. Use SD UJS for online case search.
- Deeds and liens: Register of Deeds.
- Director of Equalization.
- Tax bills: County Treasurer.
Limited online access. Most records require a phone call or in-person visit.
Each source below is verified and links to an official portal.
Criminal & Court Records
Yankton County Sex Offenders
Visit →Criminal & Court Records
Official Free
Browse this list from the Yankton, South Dakota Police Department, of registered sex offenders living in Yankton County.
PACER Federal Courts
Visit →Criminal & Court Records
.gov
Federal court electronic records (Public Access to Court Electronic Records).
pacer.gov
Jail & Inmate Records
South Dakota Sex Offender Registry
Visit →Jail & Inmate Records
.gov
Statewide South Dakota registry.
sor.sd.gov
National Sex Offender Registry
Visit →Jail & Inmate Records
.gov
Dept. of Justice national sex offender public website.
nsopw.gov
Property & Tax Records
Yankton County Register of Deeds
Visit →Property & Tax Records
Official Free
Information on how to contact the Yankton County Register of Deeds to order birth, death, marriage certificate, deeds, mortgages, liens, military discharges, burial permits, easements, property transfers, and more. Yankton County Register of Deeds, P.O. Box 6
BLM General Land Office Records
Visit →Property & Tax Records
.gov
U.S. Bureau of Land Management federal land records.
glorecords.blm.gov
Birth/Death/Marriage
FamilySearch US Records
Visit →Birth/Death/Marriage
Free U.S. genealogy and vital records (non-profit).
familysearch.org
Business, Voter & Other
Yankton County Treasurer
Visit →Business, Voter & Other
Official Free
No online database at this time. Contact information is Yankton County, SD Treasurer, Phone: (605) 260-4400, Ext. 7, Fax: (605) 260-4491.
USCIS Business Verification
Visit →Business, Voter & Other
.gov
US Citizenship & Immigration Services.
uscis.gov
Yankton County Sex Offenders
Visit →Criminal & Court Records
Official Free
Browse this list from the Yankton, South Dakota Police Department, of registered sex offenders living in Yankton County.
Property & Tax Records
Yankton County Register of Deeds
Visit →Property & Tax Records
Official Free
Information on how to contact the Yankton County Register of Deeds to order birth, death, marriage certificate, deeds, mortgages, liens, military discharges, burial permits, easements, property transfers, and more. Yankton County Register of Deeds, P.O. Box 6
Business, Voter & Other
Yankton County Treasurer
Visit →Business, Voter & Other
Official Free
No online database at this time. Contact information is Yankton County, SD Treasurer, Phone: (605) 260-4400, Ext. 7, Fax: (605) 260-4491.
Frequently Asked Questions
Who handles court records in Yankton County? ▼
Go to the Clerk of Courts for court records in Yankton County. For online case lookups, use SD UJS — it covers South Dakota Circuit Court (unified, 7 circuits) cases statewide.
Who handles property records in Yankton County? ▼
For deeds, mortgages, and liens, go to the Register of Deeds. For property values and assessment data, go to the Director of Equalization. For tax bills and payments, go to the County Treasurer.
How do I get birth, death, or marriage records in Yankton County? ▼
South Dakota handles vital records at the state level through South Dakota DOH Vital Records. Marriage licenses are issued locally by the Register of Deeds in Yankton County.
Are Yankton County records available online? ▼
Online access in Yankton County is limited. We list 3 databases here. For most other records, you will need to contact the county offices directly by phone or in person.
Does Yankton County have a County Assessor? ▼
No. In South Dakota, the Director of Equalization handles property assessments. There is no separate Assessor office. For recorded documents like deeds and mortgages, go to the Register of Deeds — that is a different office.
Is there a statewide search that covers Yankton County? ▼
For court records, yes — SD UJS covers Yankton County. For property and land records, you still need the Register of Deeds in Yankton County directly.
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