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 Crook County record-source URLs verified against the official local and Wyoming state publishers on the review date. 5 primary .gov / official sources cited below.
Crook County — Key Numbers (2026)
Population, demographics, and county-seat data for Crook County, Wyoming — verified against U.S. Census 2024 estimates.
7,775
Population
Census estimate
2,755
Households
Census estimate
$68,876
Median income
Annual household
$270,600
Median home value
Census ACS
Sundance
County seat
In Wyoming
Criminal records
2 sources
Court records
2 sources
Wants & warrants
see state portal
Property records
2 sources
Vital records
1 source
Voter records
1 source
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
Crook County Records at a Glance
| Record type | Crook County verified sources |
|---|---|
| Court records | Crook County Records and Case Search Supreme Court Receives Funding for Court Security Assessment… |
| Criminal records | Wyoming DCI Home - Sex Offender Registry |
| Wants & warrants | No verified source — see Crook County state portal below |
| Property records | Property Ownership Maps License Agreement Assessor |
| Vital records | Vital Record Services - Wyoming Department of Health |
| Voter records | Registering to Vote - Crook County - State of Wyoming |
| Professional licenses | No verified source — see Crook County state portal below |
| Recorded documents | No verified source — see Crook County state portal below |
Count of officially verified .gov / .us record sources cataloged for Crook County. Data verified June 04, 2026.
What Changed in 2026 — Crook County Records
2026
Crook County official government portal active
The official Crook County government website at www.crookcounty.wy.gov continues to serve as the canonical local source.
2026
Crook County court records portal verified
State court system links for Crook County verified against the Wyoming judiciary portal in 2026.
2026
Crook County criminal records access
State criminal records repository for Crook County (statewide system, not county-specific) confirmed active in 2026.
2026
Crook County property records online
Crook County property assessment and recorder office online portal active in 2026.
The 4-Step Crook County Records Pathway
1
Step 1 — Start at the Crook County clerk/courthouse
For most local records (court cases, property deeds, marriage licenses), the Crook 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 Crook County Records
❌ Myth: "Crook County maintains all criminal records."
✓ Truth: False. Criminal records for Crook County are held by the Wyoming state repository, NOT the county. The county sheriff has only the local arrest log.
❌ Myth: "Records sealed in Crook 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 Crook County data."
✓ Truth: False. Only the official Wyoming state repository has verified, current Crook County data. Free sites often have stale data.
❌ Myth: "The Crook County assessor's value is what I'll sell my home for."
✓ Truth: False. The Crook 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)
- www.crookcounty.wy.gov — Official Crook County government website
- www.courts.state.wy.us — 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 — Crook County & Wyoming Records
For records not specific to Crook 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 Crook County, Wyoming
Crook County is located in northeast Wyoming. The county seat is Sundance (official site: http://www.crookcounty.wy.gov).
- Population: 7,775
- Households: 2,755
- Median household income: $68,876
- Median home value: $270,600
- Below poverty line: 6.3%
- Land area: 2,854.5 sq mi
- Population density: 2.7 people / sq mi
- Public libraries indexed: 3
- NCES schools indexed: 6
Crook County Records and Case Search
Official Free
Start by using the Wyoming Judicial Branch's online resources. Visit the Wyoming State Courts' website for an overview of accessible case information. While direct online access to detailed criminal records may be limited, the site offers tools for locating case statuses and dockets.
Supreme Court Receives Funding for Court Security Assessments and Training – Wyoming Judicial Branch
Official Free
Chief Justice E. James Burke, in collaboration with the Wyoming Court Security Commission and the Office of Homeland Security, announced today that the Wyoming Supreme Court has received two State Justice Institute technical assistance grants to assess security in several courts and improve court security in Wyoming. The Supreme Court received $50,000 to conduct court security assessments of the courtrooms and judicial chambers in Albany, Platte, Goshen, Niobrara, Weston and Crook Counties.
Public Access to Court Electronic Records | PACER: Federal Court Records
Criminal & Court Records
.gov
Federal court electronic records (Public Access to Court Electronic Records).
pacer.gov
Wyoming DCI
Official Free
PACER provides information about accessing and filing federal court records electronically. Find resources for using PACER.
Home - Sex Offender Registry
Official Free
The Sexual Offender Registration (SOR) unit maintains the Wyoming Sex Offender Registry . The sheriff's office in each county is responsible for tracking sex offenders who are required to register.
Property Ownership Maps License Agreement
Official Free
Notice and Disclaimer: · The Property Ownership Maps are created for ad valorem tax purposes and are made available by the Crook County Assessor’s Office pursuant to the Wyoming Public Records Act. Ownership on this map is as of January 1, of each year and is updated on or before the fourth ...
Assessor
Official Free
We, the employees of the Crook County, Wyoming Assessor’s Office, have a primary mission to maintain the property assessment system in a way that is equitable, fair, and uniform to all citizens of Crook County and at the same time meet all constitutional and statutory requirements.
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
Family History | BYU-Idaho Special Collections
Official Free
Locating civil marriage records in Utah prior to 1887 can be difficult as historically there wasn't a legal requirement to record them in any government register. While our listing is not complete it does represent nearly all of the records thus far identified as containing early marriages.
Registering to Vote - Crook County - State of Wyoming
Official Free
REGISTER IN PERSON IN THE COUNTY CLERK'S OFFICE, A CITY HALL LOCATED WITHIN CROOK COUNTY OR AT THE POLLS ON ELECTION DAY : YOU NEED TO PROVIDE ONE OF THE ACCEPTABLE FORMS OF IDENTIFICATION (ID): You must provide a valid Wyoming Driver’s License ...
Elections
Official Free
<a href="http://www.crookcounty.wy.gov/elected_officials/clerk/election/index.php">Your Link Name</a>
Home - Criminal Records Unit
Official Free
Accurate and complete criminal history records are not only important to the criminal justice professions, but have become increasingly important for purposes outside the criminal justice community. Employers, volunteer programs, and professional licensing are relying extensively on accurate
Recorded Documents
Official Free
Fees/Requirements (see Recording Fees Section on Fee Schedule) · How to Record a Document
Crook County Home Page
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 ...
Frequently Asked Questions
Where do I find Crook County property records?
Crook County property records are maintained by the County Clerk, which records deeds, mortgages, and liens. Search the Property Ownership Maps License Agreement portal directly: https://www.crookcounty.wy.gov/elected_officials/assessor/property_ownership_maps/index.php.
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.
How long does an arrest stay on my record in Wyoming if I wasn't convicted?
In Wyoming, 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. Wyoming's rules for clearing non-conviction records are stricter than for convictions — start with the Wyoming DCI.
Are Wyoming criminal records public?
Mostly yes. Wyoming's public-records law makes adult arrests, court filings, and conviction histories accessible to anyone unless a specific statutory exemption applies. Juvenile cases and sealed records are generally excluded by statute.