Reviewed and updated October 9, 2026 by the SearchSystems.net editorial team. The arrest counts are the ones each agency reported to the FBI, as the FBI held them on October 8, 2026. 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 on September 24, 2026.
Sweetwater County, Wyoming, has about 41,000 residents (2024 Census Bureau estimate), and arrests there are reported to the FBI by the Sweetwater County Sheriff's Office and two city agencies. An arrest 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 Sweetwater County. This guide says who keeps each one, what it costs and who may see it, with the arrest counts each agency reported.
This guide covers who makes arrests, how many arrests, booking and the jail, finding an arrest, copies, cities and common questions.
Related guides: Sweetwater County public records, Wyoming arrest records, Wyoming inmate search and Wyoming criminal records.
Who Makes Arrests in Sweetwater County
The Sweetwater County Sheriff's Office is the county agency that reports arrests to the FBI for Sweetwater County. It reported 160 arrests for 2025.
The FBI lists two cities in Sweetwater County with a reporting agency of their own, with the Census population and what each reported:
- Rock Springs, 22,967 residents: 494 arrests reported for 2025.
- Green River, 11,474 residents: 168 arrests reported for 2025.
A city on that list is reported separately whether the officers are the city's own or the sheriff's under contract; the FBI's list does not say which.
How Many Arrests Each Agency Reports in Sweetwater County
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.
- Rock Springs: 494 for 2025, 499 for 2024, 647 for 2023, 548 for 2022, 600 for 2021 and 1,145 for 2020.
- Green River: 168 for 2025, 130 for 2024, 144 for 2023, 116 for 2022, 103 for 2021 and 415 for 2020.
- Sweetwater County Sheriff's Office: 160 for 2025, 114 for 2024, 105 for 2023, 122 for 2022, 141 for 2021 and 238 for 2020.
Together, the three agencies with all twelve months of 2025 on file reported 822 arrests that year. The same agencies with both 2025 and 2024 complete reported 822 in 2025 against 743 in 2024, up 11 percent.
Through July 2026, the three agencies with every month so far on file reported 467 arrests, against 467 in the same months of 2025.
Booking: Where People Arrested in Sweetwater County Are Held
A person kept in custody after an arrest in Sweetwater County 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 2022 the jail held about 81 people, down from about 110 in 2019. Its rated capacity in 2019, the last year with a capacity figure, was 333 beds, and it ran at 34 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 Sweetwater County Sheriff's Office at sweetwatercountywy.gov/departments/sheriff/detention.php (page title: Sheriff's Office), phone (307) 352-4911, 50140 US Highway 191 South Rock Springs, WY 82901, which answered when SearchSystems opened it on September 24, 2026.
A person sentenced to prison serves the sentence in a facility of the Wyoming Department of Corrections, whose inmate locator is at wdoc-loc.wyo.gov.
How to Find Out About an Arrest in Sweetwater County
Whether someone was arrested in Sweetwater County, and what came of it, shows up in two places: the case index of the District Court for Sweetwater County, which shows whether charges were filed and the next court date (the court records page SearchSystems verified is at sweetwatercountywy.gov/departments/clerk_of_district_court/index.php, phone 307-872-3820); the County Attorney, which decides whether an arrest becomes a charge (its page is at sweetwatercountywy.gov/departments/county_attorney/index.php, phone (307) 922-5260).
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 Sweetwater County
An arrest report belongs to the agency whose officer wrote it, and that agency releases it, not the court or the jail. 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 Sweetwater County Sheriff's Office: ask its records unit, reached through the office at (307) 352-4911.
- An arrest in Rock Springs or Green River: the records unit of the agency that reports for that city.
- A defendant who has been charged gets the report through the case: the County Attorney, (307) 922-5260, handles discovery for pending cases.
- The court file of a case that was filed: the District Court for Sweetwater County, through the court records page at sweetwatercountywy.gov, phone 307-872-3820.
- Your own statewide record: a fingerprint-based request to the Division of Criminal Investigation.
Cities in Sweetwater County: Who Reports the Arrests
The FBI lists a separate arrest reporting agency for two of the six cities in Sweetwater County: Rock Springs and Green River. Wamsutter, Superior, Granger and Bairoil have no separate reporting agency in the FBI's list.
Wherever in the county the arrest happens, a person kept in custody goes to the county jail and the case goes to the District Court for Sweetwater County.
Frequently Asked Questions
How many arrests are made in Sweetwater County each year?
Rock Springs reported 494 arrests to the FBI for 2025, and the three agencies with every month of 2025 on file reported 822 between them.
How do I find out if someone is in jail in Sweetwater County?
Ask the Sweetwater County Sheriff's Office at (307) 352-4911; its jail page SearchSystems verified is at sweetwatercountywy.gov.
Where are people arrested in Sweetwater County booked?
Those kept in custody go to the county jail, run by the Sweetwater County Sheriff's Office; a person cited and released at the scene is not booked.
Are arrest records public in Sweetwater County?
The court files of criminal cases in the District Court for Sweetwater 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 Sweetwater County?
From the agency that made the arrest: the Sweetwater County Sheriff's Office for its own arrests, or the agency that reports for the city where it happened. Under the Wyoming Public Records Act the answer is due within 30 days at most.
Is this the official Sweetwater 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.