Reviewed and updated October 9, 2026 by the SearchSystems.net editorial team. The arrest counts are the ones the agency reported to the FBI, through 2025. The jail figures are from the Vera Institute of Justice's Incarceration Trends data. Every office link was opened and checked against the office's own site between September 24, 2026 and October 2, 2026.
Casper, Wyoming, in Natrona County, has about 59,000 residents (2024 Census Bureau estimate), and its arrests are reported to the FBI by an agency of its own. An arrest in the city leaves the same records whoever makes it: the arresting agency's report, the record of anyone held at the county jail, and, if the County Attorney files charges, a case in the District Court for Natrona County. This guide says who keeps each one, what it costs and who may see it, with the arrest counts the agency reported.
This guide covers who makes arrests, how many arrests, booking and the jail, finding an arrest, copies and common questions.
Related guides: Casper public records, Natrona County arrest records, Wyoming arrest records and Wyoming inmate search.
Who Makes Arrests in Casper
The FBI lists Casper with an arrest reporting agency of its own, filed as Casper Police Department. It reported 2,611 arrests for 2025. A city is listed separately whether the officers are the city's own or the sheriff's under contract; the FBI's list does not say which.
Outside the city, the Natrona County Sheriff's Office is the county agency. It reported 182 arrests for 2025.
How Many Arrests Casper Reports
The FBI publishes every agency's monthly arrest counts on the Crime Data Explorer. These are the full-year totals, all offenses, as the FBI held them on October 8, 2026; a year with months missing or not reported is left out.
- Casper: 2,611 for 2025, 2,951 for 2024, 2,816 for 2023, 3,825 for 2020 and 4,989 for 2019; 2021 and 2022 are missing months.
Casper's 2,611 arrests in 2025 were down 12 percent from 2,951 in 2024.
Through July 2026, Casper reported 1,475 arrests, against 1,486 in the same months of 2025.
Across Natrona County, the three agencies with all twelve months of 2025 on file reported 3,056 arrests between them.
Booking: Where People Arrested in Casper Are Held
A person kept in custody after an arrest in Casper is held at the county jail, whichever agency made the arrest, apart from the short stay some city departments' own holding cells allow; a person cited and released at the scene is not booked at all. The jail's record of each person held, with the charges, is a public record of the arrest, and the court file takes over from there.
On an average day in 2023 the jail held about 200 people, down from about 270 in 2019. Its rated capacity in 2019, the last year with a capacity figure, was 476 beds, and it ran at 57 percent of it that year. The figures are from the Vera Institute of Justice's Incarceration Trends data.
SearchSystems opened and checked the jail page of the Natrona County Sheriff's Office at warrants.natronacounty-wy.gov (page title: Sheriff Office Warrants), which answered when SearchSystems opened it on September 24, 2026.
A sentence of more than a year is served in state prison; the Wyoming Department of Corrections lists its inmates at wdoc-loc.wyo.gov.
How to Find Out About an Arrest in Casper
For Casper the place to look is the case index of the District Court for Natrona County, which shows whether charges were filed and the next court date (the court records page SearchSystems verified is at natronacounty-wy.gov/89/Court-Cases).
Wyoming does not let the public search another person's statewide criminal history. The record kept by the Wyoming Division of Criminal Investigation goes to the person it belongs to and to employers and agencies the law authorizes; for everyone else the court's own case index is the public record of an arrest that led to a charge.
Getting a Copy of an Arrest Record in Casper
The report of an arrest is released by the agency that made it; the jail and the court hold their own records of the same event, but not the report. Under the Wyoming Public Records Act the agency must answer within 30 days at most, and it may charge the actual cost of copying.
- An arrest by the Casper police: the police records page SearchSystems verified at casperwy.gov/community/police/services/public_records_request.php (page title: Casper, WY), phone (307) 235-8278, 200 N David St Casper, WY 82601, which answered when SearchSystems opened it on September 26, 2026.
- An arrest by the Natrona County Sheriff's Office: ask its records unit.
- The court file of a case that was filed: the District Court for Natrona County, through the court records page at natronacounty-wy.gov/89/Court-Cases.
- Your own statewide record: a fingerprint-based request to the Division of Criminal Investigation.
The Natrona County guide covers every agency in the county: Natrona County arrest records.
Frequently Asked Questions
How many arrests are made in Casper each year?
Casper reported 2,611 arrests to the FBI for 2025, its latest full year.
How do I find out if someone is in jail in Casper?
Ask the Natrona County Sheriff's Office; its jail page SearchSystems verified is at warrants.natronacounty-wy.gov.
Where are people arrested in Casper booked?
Those kept in custody go to the county jail, run by the Natrona County Sheriff's Office; a person cited and released at the scene is not booked.
Are arrest records public in Casper?
The court files of criminal cases in the District Court for Natrona County are public and can be looked up through the court. The statewide criminal history kept by the Wyoming Division of Criminal Investigation is not public; you can get your own. The arrest report itself is released by the agency that made the arrest, under the Wyoming Public Records Act.
How do I get a copy of an arrest report in Casper?
From the agency that made the arrest: the Casper police for its own arrests, the Natrona County Sheriff's Office for the sheriff's. Under the Wyoming Public Records Act the answer is due within 30 days at most.
Is this the official Casper website?
No. SearchSystems.net is an independent public records guide, online since 1997. It links to the official city, county, court and state offices described above and does not hold records, charge for them or take requests.