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Last reviewed: June 04, 2026 · Methodology: all Clay County record-source URLs verified against the official local and South Dakota state publishers on the review date. 4 primary .gov / official sources cited below.

Clay County — Key Numbers (2026)

Population, demographics, and county-seat data for Clay County, South Dakota — verified against U.S. Census 2024 estimates.
15,245
Population
Census estimate
5,416
Households
Census estimate
$55,963
Median income
Annual household
$209,300
Median home value
Census ACS
Vermillion
County seat
In South Dakota
Clay County Records Availability Map
Criminal records
1 source
Court records
3 sources
Wants & warrants
2 sources
Property records
1 source
Vital records
see state portal
Voter records
2 sources
Professional licenses
see state portal
Recorded documents
see state portal
Count of verified official sources per record type. Multiple sources   One source   Use state portal

Clay County Records at a Glance

Record typeClay County verified sources
Court recordsClay County | South Dakota Unified Judicial System | SD UJS
Reserve Deputies - Clay County Sheriff
Criminal recordsPublic Access to Court Records | South Dakota Unified Judici…
Wants & warrantsClay County, SD Sheriff
South Dakota Unified Judicial System - SD.gov
Property recordsClay County, South Dakota - Assessor (Director of Equalizati…
Vital recordsNo verified source — see Clay County state portal below
Voter recordsClay County, South Dakota - Auditor & Elections
Voter Information - Clay County Supervisor of Elections
Professional licensesNo verified source — see Clay County state portal below
Recorded documentsNo verified source — see Clay County state portal below
Clay County — Verified Record Sources by Type (2026)
Court records3Criminal records1Wants & warrants2Property records1Vital records0Voter records2Licenses0Recorded docs0
Count of officially verified .gov / .us record sources cataloged for Clay County. Data verified June 04, 2026.

What Changed in 2026 — Clay County Records

2026
Clay County court records portal verified
State court system links for Clay County verified against the South Dakota judiciary portal in 2026.
2026
Clay County criminal records access
State criminal records repository for Clay County (statewide system, not county-specific) confirmed active in 2026.
2026
Clay County property records online
Clay County property assessment and recorder office online portal active in 2026.
2026
FBI Identity History Summary (federal complement)
For records that may exist outside South Dakota, the FBI Identity History Summary at fbi.gov complements all county-level state records.

The 4-Step Clay County Records Pathway

1
Step 1 — Start at the Clay County clerk/courthouse
For most local records (court cases, property deeds, marriage licenses), the Clay County clerk's office is the first stop.
2
Step 2 — Use the South Dakota statewide systems
Criminal background, court case search, voter registration, and professional licensing are all run at the South Dakota state level — not by the county.
3
Step 3 — Federal sources for federal records
Federal court cases (PACER), federal tax liens (IRS), military records (NPRC), and immigration data (ICE) are all federal — not held by the county.
4
Step 4 — Cross-check before relying on data
Most county portals lag 24-48 hours behind the courthouse. For time-sensitive verification, call the clerk directly.

Five Things People Get Wrong About Clay County Records

❌ Myth: "Clay County maintains all criminal records."
✓ Truth: False. Criminal records for Clay County are held by the South Dakota state repository, NOT the county. The county sheriff has only the local arrest log.
❌ Myth: "Records sealed in Clay County are gone everywhere."
✓ Truth: False. Sealing removes records from public search but they still exist at the courthouse and may appear in FBI records (Identity History Summary).
❌ Myth: "Free 'instant background' sites have Clay County data."
✓ Truth: False. Only the official South Dakota state repository has verified, current Clay County data. Free sites often have stale data.
❌ Myth: "The Clay County assessor's value is what I'll sell my home for."
✓ Truth: False. The Clay County assessor's value is for property tax purposes only — usually below market value.
❌ Myth: "All county records older than 50 years are public."
✓ Truth: Partially false. Public-records rules vary by record type AND state. Court records and deeds are usually older-public; vital records remain restricted longer (often 75-125 years).

Primary Sources (All Verified)

Related — Clay County & South Dakota Records

For records not specific to Clay County, use South Dakota's statewide system or the national hub.
📍 South Dakota statewide record systems:
🇺🇸 National hubs:
Related Public Records
Other counties in South Dakota: Brown · Butte · Codington · Corson · Davison

About Clay County, South Dakota

Clay County is located in South Dakota. The county seat is Vermillion.

  • Population: 15,245
  • Households: 5,416
  • Median household income: $55,963
  • Median home value: $209,300
  • Below poverty line: 21.2%
  • Land area: 412.0 sq mi
  • Population density: 37.0 people / sq mi
  • Public libraries indexed: 2
  • NCES schools indexed: 5
CT
Clay County | South Dakota Unified Judicial System | SD UJS
Official Free
Part of the First Judicial Circuit · PO Box 377 211 West Main Street Suite #300 Vermillion, SD 57069-0377 Office Hours: 8:00 a.m. to 5:00 p.m., Monday through Friday · Phone: 605-677-6756 Fax: 605-677-8885 Email: claycoclerk@ujs.state.sd.us · 211 West Main Street Suite #101 Vermillion, SD 57069-2039 · Phone: 605-677-6485 Fax: 605-677-3132 · Clay County Website Pay Fines Online ·
CT
Reserve Deputies - Clay County Sheriff
Official Free
Reserve Deputy Matt Olson is a life long resident of Clay County and graduated from Vermillion High School in 1989. He attended Southeast Vo-Tech in Sioux Falls, SD in the heating and cooling field. He farms in rural Clay County and sells real estate part time.
CT
PACER Information | District of South Dakota | United States District Court
Criminal & Court Records
.gov

Federal court electronic records (Public Access to Court Electronic Records).

pacer.gov
South Dakota eCourts
Official Free
Public Access to Court Electronic Records (PACER) is an electronic public access service that allows users to obtain case and docket information from federal appellate, district and bankruptcy courts, and the PACER Case Locator via the Internet .
WW
Clay County, SD Sheriff
Official Free
Please contact us at 605-677-7100 or at ccso@claysheriff.orgwith information regarding any of these wanted persons. This list changes frequently and is intended to show active warrants held on the date shown.
WW
South Dakota Unified Judicial System - SD.gov
Official Free
Public Access Record Search South Dakota Unified Judicial System · ANYONE ACCESSING PUBLIC INFORMATION FROM THIS INTERNET PORTAL SHOULD REVIEW THE FOLLOWING DISCLAIMER:
WW
ERIN BAUMGART CRIMINAL STATISTICAL ANAYLST AUGUST 4, 2021
Official Free
CRIMINAL STATISTICAL ANAYLST · 2021 Sheriff’s Management Study
VT
Clay County, South Dakota - Auditor & Elections
Official Free
PRESS RELEASE: Voter Registration U.S.
VT
Voter Information - Clay County Supervisor of Elections
Official Free
Voter information includes registration guidance, ballot details, precinct maps, and election day instructions.
VR
South Dakota Secretary of State, Monae L. Johnson
Official Free
If a person completes a registration the county auditor must register that person's party affiliation as no party affiliation. **OTHER – This category is for voters who write any other political party on their voter registration form that is not currently a recognized political party in South Dakota
CR
Public Access to Court Records | South Dakota Unified Judicial System | SD UJS
Official Free
Easily find statewide criminal and civil court case information through UJS Public Access Record System. Submit your request today!
CR
Computerized Criminal History (CCH)
Official Free
The State's Computerized Criminal History (CCH) system contains data on subjects arrested for misdemeanors and felonies in South Dakota (per SDCL 23-5-1 and 23-5-4) that go through the State courts, along with all penitentiary entries and follow-up criminal information.
PR
Clay County, South Dakota - Assessor (Director of Equalization)
Official Free
Director of Equalization/Assessor's Office · Vermillion, SD 57069
VR
Clay County, South Dakota - Register of Deeds
Official Free
Filings consist of UCC's, fictitious names, county indigent liens, sheriff's levy, personal property liens, federal tax liens, state tax liens and other miscellaneous documents. Birth, death and marriage certificates are issued from the South Dakota Department of Health Vital Records system .
LC
South Dakota Real Estate License Verification
Official Free
Search the online verification system using one of the options below to see a roster of currently licensed real estate brokers, broker associates, salespersons, auctioneers, property managers, residential rental agents, home inspectors and timeshare agents in South Dakota.
RD
Clay County Register of Deeds
Official Free
The Register of Deeds office provides a standardized, permanent record of real estate ownership and transfers in Clay County · Our office records deeds, deeds of trust, cancellations, plats, assumed names, powers of attorney and other miscellaneous documents related to real estate.
BZ
Clay County
Official Free
Field notes are the narrative record of the cadastral survey . They are written in tabular format and contain the detailed descriptions of entire survey process including the instrumentation and procedures utilized, calling all physical evidence evaluated in the survey process, and listing all ...
BZ
South Dakota Secretary of State Monae L. Johnson - Business
Business, Voter & Other
.gov

SD SOS business search.

sosenterprise.sd.gov

Frequently Asked Questions

How do I look up court cases in Clay County?
Clay County court cases are searchable through the Clay County | South Dakota Unified Judicial System | SD UJS portal: https://ujs.sd.gov/court-finder/first-judicial-circuit/clay-county/. South Dakota also operates a state-level case lookup through the SD UJS system. For federal matters, see PACER.
What's the difference between sealing and expunging a record in South Dakota?
In South Dakota, a sealed record is hidden from public view but still exists and remains visible to law enforcement, licensing boards, and some employers. An expunged record is treated by South Dakota law as if it never happened — though FBI and federal records may persist regardless of state action. The relief process runs through the sentencing court.
How long does an arrest stay on my record in South Dakota if I wasn't convicted?
In South Dakota, an arrest stays on your record indefinitely unless you petition the court to seal or expunge it, even if charges were dropped or you were found not guilty. South Dakota's rules for clearing non-conviction records are stricter than for convictions — start with the South Dakota Division of Criminal Investigation.
How do I run a South Dakota background check?
South Dakota background checks are handled by the South Dakota Division of Criminal Investigation. Name-based searches are available through the official state portal (per-search fee applies). Fingerprint-based checks — required for licensing, foster care, and many employers — must be submitted through an approved vendor.