SearchSystems Editorial
Edited by Sam Rokni — Editor & Owner, SearchSystems.net. Public records professional since 1999. NAPBS founding member. Full bio & credentials.
Last reviewed: June 04, 2026 · Methodology: all Big Horn County record-source URLs verified against the official local and Wyoming state publishers on the review date. 5 primary .gov / official sources cited below.
Big Horn County — Key Numbers (2026)
Population, demographics, and county-seat data for Big Horn County, Wyoming — verified against U.S. Census 2024 estimates.
12,084
Population
Census estimate
4,262
Households
Census estimate
$61,262
Median income
Annual household
$179,800
Median home value
Census ACS
Basin
County seat
In Wyoming
Criminal records
2 sources
Court records
2 sources
Wants & warrants
see state portal
Property records
3 sources
Vital records
1 source
Voter records
2 sources
Professional licenses
1 source
Recorded documents
see state portal
Count of verified official sources per record type. Multiple sources One source Use state portal
Big Horn County Records at a Glance
| Record type | Big Horn County verified sources |
|---|---|
| Court records | Collection: Guide to the Big Horn County District Court Reco… Circuit Courts - Wyoming Judicial Branch |
| Wants & warrants | No verified source — see Big Horn County state portal below |
| Property records | Big Horn County, Wyoming, MapServer Use Terms and Conditions About Us |
| Vital records | Vital Record Services - Wyoming Department of Health |
| Recorded documents | Big Horn County Home Page |
Count of officially verified .gov / .us record sources cataloged for Big Horn County. Sources reviewed June 04, 2026.
What Changed in 2026 — Big Horn County Records
2026
Big Horn County official government portal active
The official Big Horn County government website at www.bighorncountywy.gov continues to serve as the canonical local source.
2026
Big Horn County court records portal verified
State court system links for Big Horn County verified against the Wyoming judiciary portal in 2026.
2026
Big Horn County property records online
Big Horn County property assessment and recorder office online portal active in 2026.
The 4-Step Big Horn County Records Pathway
1
Step 1 — Start at the Big Horn County clerk/courthouse
For most local records (court cases, property deeds, marriage licenses), the Big Horn County clerk's office is the first stop.
2
Step 2 — Use the Wyoming statewide systems
Criminal background, court case search, voter registration, and professional licensing are all run at the Wyoming 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 Big Horn County Records
❌ Myth: "Big Horn County maintains all criminal records."
✓ Truth: False. Criminal records for Big Horn County are held by the Wyoming state repository, NOT the county. The county sheriff has only the local arrest log.
❌ Myth: "Records sealed in Big Horn 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 Big Horn County data."
✓ Truth: False. Only the official Wyoming state repository has verified, current Big Horn County data. Free sites often have stale data.
❌ Myth: "The Big Horn County assessor's value is what I'll sell my home for."
✓ Truth: False. The Big Horn 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 and Official Record Portals
- www.bighorncountywy.gov — Official Big Horn County government website
- wyocomet.wyo.gov — Court records — official source
- wyomingdci.wyo.gov — Criminal records — official source
- health.wyo.gov — Vital records — official source
- fbi.gov — FBI Identity History Summary (federal record)
Related — Big Horn County & Wyoming Records
For records not specific to Big Horn County, use Wyoming's statewide system or the national hub.
📍 Wyoming statewide record systems:
- Wyoming Court Records →
- Wyoming Criminal Records →
- Wyoming Property Records →
- Wyoming Vital Records →
- Wyoming Voter Records →
- Wyoming Wants & Warrants →
- Wyoming Licenses →
- Wyoming Recorded Documents →
🇺🇸 National hubs:
Related Public Records
Wyoming statewide records: Court records · Criminal records · Wants & warrants · Property records · Vital records · Voter records · Licenses · Recorded docs
National directories: Court records · Criminal records · Property records · Vital records · Federal databases
About Big Horn County, Wyoming
Big Horn County is located in northern Wyoming. The county seat is Basin (official site: http://www.bighorncountywy.gov/).
- Population: 12,084
- Households: 4,262
- Median household income: $61,262
- Median home value: $179,800
- Below poverty line: 11.1%
- Land area: 3,137.0 sq mi
- Population density: 3.9 people / sq mi
- Public libraries indexed: 6
- NCES schools indexed: 16
Big Horn County, Wyoming, MapServer Use Terms and Conditions
Official Free
If you are new to the MapServer you may want to read this quick help · I have read, understand, and agreed to the above terms and so signify by clicking the "Accept Terms and Conditions" button below. and use the interactive MapServer. and download GIS data
About Us
Official Free
The taxpayers themselves, state limitation and assessed values determine the tax rate for each district in the county. Billing and collection of taxes are the responsibility of the County Treasurer. Lovell Annex Big Horn County Courthouse Services Assessor’s office, Clerk’s Office & Treasurer’s Office
Treasurer | Big Horn County, MT
Official Free
Tax and license payment records are maintained as well as disbursement records. Additionally, the office is required to keep detailed records of school budgets. Reports from this office go to the State, the City of Hardin, schools, irrigation, and various districts, and to the County Commissioners.
Collection: Guide to the Big Horn County District Court Records | ArchivesSpace Public Interface
Official Free
Records created by or filed with the Big Horn County District Court, including civil, criminal and probate case files, naturalization records and irrigation district records. Unless noted, indexes to case files have been retained by the court. Please contact the Clerk of Court for docket numbers ...
Circuit Courts - Wyoming Judicial Branch
Official Free
They must be attorneys admitted to the Wyoming State Bar and qualified electors of the state, and their judicial positions are full-time. A circuit court judge may submit names to the county commissioners for the appointment of magistrates to assist the judge. A full-time magistrate may be appointed in each county where a circuit court judge does not reside. There are full-time magistrates in Big Horn, Johnson, Niobrara and Platte counties.
Wyoming CM/ECF | District of Wyoming | United States District Court
Criminal & Court Records
.gov
Federal court electronic records (Public Access to Court Electronic Records).
pacer.gov
Wyoming Division of Criminal Investigation - Wyo.Gov
Official Free
DCI set out to develop and maintain a database consisting of Wyoming unsolved homicide and sexual assault information to uncover case connections, develop leads, identify suspects, and solve cases bringing closure to victims and their families.
Registering to Vote in Wyoming
Official Free
In accordance with SAVE, voter registration information provided by new registrants and registered voters may be verified against federal immigration records. If you are already registered to vote in Wyoming, and you need information about how to obtain an absentee ballot click here. If you arrived on this page from your county clerk's website, simply close this tab in your web browser to return to their site, or select your county from the popup options below. Albany County Big Horn County Campbell County Carbon County Converse County Crook County Fremont County Goshen County Hot…
Vital Record Services - Wyoming Department of Health
Official Free
Open to the public: Mon-Thur: 9am to 4pm Friday: By appointment only Excluding Holidays Vital Statistics Services helps the public file and access vital records . Vital records include birth, death, fetal death, marriage, divorce and other related data. Vital events are filed with the registrar
Big Horn County Home Page
Official Free
Official Big Horn County, Wyoming government source (www.bighorncountywy.gov).
Frequently Asked Questions
How do I look up court cases in Big Horn County?
Big Horn County court cases are searchable through the Collection: Guide to the Big Horn County District Court Records | ArchivesSpace Public Interface portal: https://wyocomet.wyo.gov/repositories/2/resources/961. Wyoming also operates a state-level case lookup through the Wyoming Courts system. For federal matters, see PACER.
Does an arrest show up on a background check before conviction in Wyoming?
Yes — in Wyoming, an arrest can appear on a name-based background check from the moment of booking, even before any court ruling. Whether it appears on an employment screening depends on the type of check (name-based vs. fingerprint-based) and how recent the arrest is.
What's the difference between sealing and expunging a record in Wyoming?
In Wyoming, 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 Wyoming 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.
What is an ICE detainer (Form I-247)?
An ICE detainer (Form I-247) is a written request from ICE asking a local jail to hold someone for up to 48 additional hours after they would normally be released so ICE can take custody. Federal courts have held that detainers are requests, not orders — whether a jail honors a detainer depends on the local sheriff's policy.