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 23, 2026.
Mono County, California, has about 13,000 residents (2024 Census Bureau estimate), and arrests there are reported to the FBI by the Mono County Sheriff's Office, one city agency and three state 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 District Attorney files charges, a case in the Superior Court of California, County of Mono. 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: Mono County public records, California arrest records, California inmate search and California criminal records.
Who Makes Arrests in Mono County
The Mono County Sheriff's Office is the county agency that reports arrests to the FBI for Mono County. It reported 113 arrests for 2025.
The FBI lists one city in Mono County with a reporting agency of its own:
- Mammoth Lakes, 7,124 residents: 205 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.
The FBI's agency list also places these agencies in Mono County: the Highway Patrol's Bridgeport, King City and Monterey Area Offices (state police).
How Many Arrests Each Agency Reports in Mono 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.
- Mammoth Lakes: 205 for 2025, 142 for 2024, 121 for 2023, 135 for 2022, 134 for 2020 and 190 for 2019; 2021 is missing months.
- Mono County Sheriff's Office: 113 for 2025, 91 for 2024, 58 for 2023, 59 for 2022, 106 for 2020 and 92 for 2019; 2021 is missing months.
Together, the two agencies with all twelve months of 2025 on file reported 318 arrests that year. The same agencies with both 2025 and 2024 complete reported 318 in 2025 against 233 in 2024, up 36 percent.
Through July 2026, the two agencies with every month so far on file reported 131 arrests, against 203 in the same months of 2025.
Booking: Where People Arrested in Mono County Are Held
A person kept in custody after an arrest in Mono 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 2025 the jail held about 19 people, down from about 30 in 2019. Its rated capacity in 2018, the last year with a capacity figure, was 48 beds, and it ran at 62 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 Mono County Sheriff's Office at monosheriff.citizenrims.com (page title: Mono County Sheriff's Department | Incarcerated People), which answered when SearchSystems opened it on September 23, 2026.
A sentence of more than a year is served in state prison; the California Department of Corrections and Rehabilitation lists its inmates at cdcr.ca.gov/search.
How to Find Out About an Arrest in Mono County
An arrest in Mono County can be traced in two places, depending on where the case stands: the case index of the Superior Court of California, County of Mono, which shows whether charges were filed and the next court date (the court records page SearchSystems verified is at mono.courts.ca.gov/online-services/name-searches-and-records-requests); the District Attorney, which decides whether an arrest becomes a charge (its page is at monocounty.ca.gov/1873/District-Attorney, phone 760-924-1710).
California does not let the public search another person's statewide criminal history. The record kept by the California Department of Justice 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 Mono 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 California Public Records Act the agency must answer within 10 days, with up to 14 more days in unusual circumstances, and it may charge the direct cost of copying only, not staff time.
- An arrest by the Mono County Sheriff's Office: ask its records unit.
- An arrest in Mammoth Lakes: the records unit of the agency that reports for that city; the city guides linked above name each city's records office.
- An arrest by the Highway Patrol's Bridgeport, King City and Monterey Area Offices: the records office of the agency involved.
- A defendant who has been charged gets the report through the case: the District Attorney, 760-924-1710, handles discovery for pending cases.
- The court file of a case that was filed: the Superior Court of California, County of Mono, through the court records page at mono.courts.ca.gov.
- Any county record that is not posted: the county records request page SearchSystems verified is at mono.courts.ca.gov (page title: Name Searches and Records Requests | Superior Court of California | County of Mono).
- Your own statewide record: a Record Review through Live Scan fingerprinting, form BCIA 8016RR, $25.
Cities in Mono County: Who Reports the Arrests
The FBI lists a separate arrest reporting agency for Mammoth Lakes, the one city in Mono County.
Wherever in the county the arrest happens, a person kept in custody goes to the county jail and the case goes to the Superior Court of California, County of Mono.
SearchSystems has a guide to the offices of these cities in Mono County, with the 2024 Census Bureau population; a city with its own arrest records guide opens there:
- Mammoth Lakes (7,124)
Frequently Asked Questions
How many arrests are made in Mono County each year?
Mammoth Lakes reported 205 arrests to the FBI for 2025, and the two agencies with every month of 2025 on file reported 318 between them.
How do I find out if someone is in jail in Mono County?
Ask the Mono County Sheriff's Office; its jail page SearchSystems verified is at monosheriff.citizenrims.com.
Where are people arrested in Mono County booked?
Those kept in custody go to the county jail, run by the Mono County Sheriff's Office; a person cited and released at the scene is not booked.
Are arrest records public in Mono County?
The court files of criminal cases in the Superior Court of California, County of Mono are public and can be looked up through the court. The statewide criminal history kept by the California Department of Justice is not public; you can get your own for $25. The arrest report itself is released by the agency that made the arrest, under the California Public Records Act.
How do I get a copy of an arrest report in Mono County?
From the agency that made the arrest: the Mono County Sheriff's Office for its own arrests, or the agency that reports for the city where it happened. Under the California Public Records Act the answer is due within 10 days, with up to 14 more days in unusual circumstances; the county records request page SearchSystems verified is at mono.courts.ca.gov.
Is this the official Mono 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.