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 2, 2026.
Big Horn County, Wyoming, has about 12,000 residents (2024 Census Bureau estimate). The title to a parcel in Big Horn County is in the deed records of the County Clerk and its taxable value is set by the County Assessor; 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 and common questions.
Related guides: Big Horn County public records, Big Horn County arrest records, Big Horn County warrants, Big Horn County inmate search, Big Horn County criminal records, Wyoming arrest records and Wyoming inmate search.
Deeds, Mortgages and Liens in Big Horn County
Who owns a parcel in Big Horn County and what it sold for are in the deed records of the County Clerk, with every lien or mortgage against the land.
SearchSystems opened and checked the County Clerk's page at bighorncountywy.gov/departments/clerk (page title: About Us), phone 307-568-2357, Monday - Friday, 8:00 a.m. - 5:00 p.m., which answered when SearchSystems opened it on September 24, 2026.
Assessed Values and the Tax Roll in Big Horn County
What a parcel in Big Horn County is taxed on is the business of the County Assessor, which also keeps the parcel maps. Wyoming assesses homes at 9.5 percent of their market value.
SearchSystems opened and checked the County Assessor's page at bighorncountywy.gov/departments/assessor (page title: About Us), phone (307) 568-2547, 420 W C St PO Box 109 Basin, WY 82410, Mon - Fri 8:00 AM - 5:00 PM, which answered when SearchSystems opened it on September 24, 2026.
Evictions and Court Cases About Land in Big Horn County
Court cases about land from Big Horn County, evictions among them, are filed in the Circuit Court or the District Court for Big Horn County.
The court records page SearchSystems verified for the county is at wyocomet.wyo.gov/repositories/2/resources/961, phone (307) 777-7826.
Asking a County Office for a Record
Under the Wyoming Public Records Act a county office must answer a request within 30 days at most, and it may charge the actual cost of copying.
Frequently Asked Questions
Who records deeds in Big Horn County?
The County Clerk, at bighorncountywy.gov/departments/clerk, phone 307-568-2357. Deeds, mortgages and liens on land in Big Horn County are filed there, and the County Assessor (bighorncountywy.gov/departments/assessor) has the assessment records.
Who sets the assessed value of a property in Big Horn County?
The County Assessor, whose page SearchSystems verified is at bighorncountywy.gov/departments/assessor.
Where are evictions from Big Horn County filed?
In the Circuit Court. The file is public unless the court seals it.
How is property assessed in Wyoming?
Wyoming assesses homes at 9.5 percent of their market value.
Is this the official Big Horn 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.