Buffalo County Criminal Records

Criminal · Arrest · Court · Sex offender

Use the official court, custody, police-record, and statewide paths for Buffalo County, South Dakota; jurisdiction limits are explained.

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Searches are compiled from court, county, and statewide public-record sources.

Buffalo County public records: common questions

Where to search Buffalo County records

Buffalo County, South Dakota court, custody, police, and statewide records are kept in separate systems. Start court research with South Dakota Unified Judicial System court and clerk information.

Court casesSouth Dakota Unified Judicial System court and clerk information
Current custodyConfirm the current jail or detention source with the local agency.
Statewide recordsUse the South Dakota state-level source described below when available.
Federal recordsFederal court and custody records are outside county systems and require a separate federal search.

Verified local details

These details were drawn from the official sources linked in this guide. Reconfirm addresses, contacts, schedules, fees, and other time-sensitive details with the responsible agency.

The Buffalo County Sheriff’s Office lists Sheriff Wayne Willman and telephone 605-293-3231.
The sheriff page lists highway hours Monday through Thursday, 7 a.m. to 5 p.m., and courthouse hours Monday through Friday, 9 a.m. to 5 p.m.
The state service directory lists the sheriff at 112 Osman Avenue, Gann Valley, SD 57341, and identifies county jail and correctional-facility inquiries as sheriff contacts.
The UJS court page routes Buffalo County clerk and court services through Brule County in Chamberlain.

Buffalo County official record-source actions
Record type	Agency or source	Scope	Action	Last checked
Court cases	South Dakota Unified Judicial System court and clerk information	County or local	Open source	August 10, 2026
Police and incident records	County sheriff information	County or local	Open source	August 10, 2026
Police and incident records	Buffalo County official source (dakotaathome.sd.gov)	County or local	Open source	August 10, 2026
Court cases	Buffalo County official source (ujs.sd.gov)	County or local	Open source	August 10, 2026

How this guide is maintained: This matrix only republishes government and agency destinations supported by the researched guide or its reviewed county source registry. Page updated August 10, 2026. Agency sites and coverage can change, so confirm current rules with the source. Read our county source-review and correction policy.

If you are checking a Buffalo County record, start by identifying which agency created it. Court dockets, municipal cases, jail information, police reports, and state records are separate sources. This page brings those paths together for Buffalo County. Buffalo County has 1,802 residents (2025 estimate). The source map below identifies the relevant local courts and agencies. Offices and online systems change, so confirm details with the agency before relying on a record.

Quick facts

County-equivalent identity: 46-017
Population: 1,802 residents (2025 estimate)
Local detail: The Buffalo County Sheriff’s Office lists Sheriff Wayne Willman and telephone 605-293-3231.
Local detail: The sheriff page lists highway hours Monday through Thursday, 7 a.m. to 5 p.m., and courthouse hours Monday through Friday, 9 a.m. to 5 p.m.
Local detail: The state service directory lists the sheriff at 112 Osman Avenue, Gann Valley, SD 57341, and identifies county jail and correctional-facility inquiries as sheriff contacts.
Local detail: The UJS court page routes Buffalo County clerk and court services through Brule County in Chamberlain.

What is specific about this local guide

Local detail: The Buffalo County Sheriff’s Office lists Sheriff Wayne Willman and telephone 605-293-3231.
Local detail: The sheriff page lists highway hours Monday through Thursday, 7 a.m. to 5 p.m., and courthouse hours Monday through Friday, 9 a.m. to 5 p.m.
Local detail: The state service directory lists the sheriff at 112 Osman Avenue, Gann Valley, SD 57341, and identifies county jail and correctional-facility inquiries as sheriff contacts.

How do I contact the Buffalo County Sheriff?

For Buffalo County, start with County sheriff information and South Dakota Unified Judicial System court and clerk information, then confirm the filing court or creating agency. How do I contact the Buffalo County Sheriff depends on the record type and jurisdiction. The county sheriff page provides contact hours but no live inmate roster or detailed visitation policy.

Where are Buffalo County court services located?

For Buffalo County, start with County sheriff information and South Dakota Unified Judicial System court and clerk information, then confirm the filing court or creating agency. Where are Buffalo County court services located depends on the record type and jurisdiction. The county sheriff page provides contact hours but no live inmate roster or detailed visitation policy.

How can jail or correctional information be confirmed?

For Buffalo County, start with County sheriff information and South Dakota Unified Judicial System court and clerk information, then confirm the filing court or creating agency. How can jail or correctional information be confirmed depends on the record type and jurisdiction. The county sheriff page provides contact hours but no live inmate roster or detailed visitation policy.

What does the First Judicial Circuit handle?

For Buffalo County, start with County sheriff information and South Dakota Unified Judicial System court and clerk information, then confirm the filing court or creating agency. What does the First Judicial Circuit handle depends on the record type and jurisdiction. The county sheriff page provides contact hours but no live inmate roster or detailed visitation policy.

How can Buffalo County court dates or fines be found?

For Buffalo County, start with County sheriff information and South Dakota Unified Judicial System court and clerk information, then confirm the filing court or creating agency. How can Buffalo County court dates or fines be found depends on the record type and jurisdiction. The county sheriff page provides contact hours but no live inmate roster or detailed visitation policy.

Which agency handles an incident in Gann Valley or another municipality?

For Buffalo County, start with County sheriff information and South Dakota Unified Judicial System court and clerk information, then confirm the filing court or creating agency. Which agency handles an incident in Gann Valley or another municipality depends on the record type and jurisdiction. The county sheriff page provides contact hours but no live inmate roster or detailed visitation policy.

Jail, booking, and custody records

The current county jail or detention path still requires local confirmation. The county sheriff page provides contact hours but no live inmate roster or detailed visitation policy.

Finding Buffalo County criminal court records

Start with South Dakota Unified Judicial System court and clerk information for the official Buffalo County court path. County: The Buffalo County Sheriff provides county law enforcement and jail-related contacts; municipal and tribal agencies may have separate authority. Court: Buffalo County is part of the First Judicial Circuit, with clerk and court services routed through Brule County Court Services.

Local courts, citations, and municipal records

Municipal and local court coverage is separate from the county trial-court path. Custody: The sheriff is the county correctional-facility contact, but the reviewed pages do not publish a current Buffalo County roster or capacity. Municipal: Gann Valley and other local jurisdictions may have separate municipal ordinances and policing arrangements.

Local police and incident-report sources

For police or incident records, use County sheriff information. The UJS page routes court services outside Buffalo County, so local facility details should be confirmed before visiting.

City pages and jurisdiction boundaries

The relevant local courts and agencies may serve different incorporated municipalities, so confirm the filing locality before relying on a record.

Statewide South Dakota criminal-record sources

Statewide South Dakota sources are separate from Buffalo County local records. Do not treat a statewide search as a complete county docket, jail roster, or police-record database.

Related South Dakota county guides

No adjacent county guide is live yet.

Nearby county links will be added after the neighboring pages pass the same source and content review.

Official Buffalo County and South Dakota record sources

For an official starting point, use South Dakota Unified Judicial System court and clerk information. Confirm current access rules, fees, contacts, and jurisdiction with the responsible agency.

Disclosure: criminal.com may earn a commission when you use the people-search tool on this page, which is powered by a third-party background-check service. Results are for personal knowledge only and may not be used for employment, housing, credit, tenant screening, or any other purpose covered by the Fair Credit Reporting Act. An arrest or booking record is not proof of guilt. This page is general information, not legal advice; for advice about a specific situation, consult an attorney.

Prefer an official source? For an official starting point, use South Dakota Unified Judicial System court and clerk information. Confirm current access rules, fees, contacts, and jurisdiction with the responsible agency.

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