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 23, 2026 and September 26, 2026.
Mammoth Lakes, California, in Mono County, has about 7,100 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 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 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: Mammoth Lakes public records, Mono County arrest records, California arrest records and California inmate search.
Who Makes Arrests in Mammoth Lakes
The FBI lists Mammoth Lakes with an arrest reporting agency of its own, filed as Mammoth Lakes Police Department. It reported 205 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 Mono County Sheriff's Office is the county agency. It reported 113 arrests for 2025.
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 Mammoth Lakes Reports
Each agency reports its arrests to the FBI by month, and the FBI publishes them 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.
Mammoth Lakes's 205 arrests in 2025 were up 44 percent from 142 in 2024.
Through July 2026, Mammoth Lakes reported 103 arrests, against 123 in the same months of 2025.
Across Mono County, the two agencies with all twelve months of 2025 on file reported 318 arrests between them.
Booking: Where People Arrested in Mammoth Lakes Are Held
A person kept in custody after an arrest in Mammoth Lakes 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 Mammoth Lakes
Whether someone was arrested in Mammoth Lakes, and what came of it, shows up in two places: 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 Mammoth Lakes
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 Mammoth Lakes police: the police records page SearchSystems verified at townofmammothlakes.ca.gov/837/Records-Reports (page title: Records & Reports | Mammoth Lakes, CA), phone (760) 924-1710, 58 Thompsons Way Mammoth Lakes, CA 93546, which answered when SearchSystems opened it on September 26, 2026.
- An arrest by the Mono County Sheriff's Office: ask its records unit.
- 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.
The Mono County guide covers every agency in the county: Mono County arrest records.
Frequently Asked Questions
How many arrests are made in Mammoth Lakes each year?
Mammoth Lakes reported 205 arrests to the FBI for 2025, its latest full year.
How do I find out if someone is in jail in Mammoth Lakes?
Ask the Mono County Sheriff's Office; its jail page SearchSystems verified is at monosheriff.citizenrims.com.
Where are people arrested in Mammoth Lakes 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 Mammoth Lakes?
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 Mammoth Lakes?
From the agency that made the arrest: the Mammoth Lakes police for its own arrests, the Mono County Sheriff's Office for the sheriff's. 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 Mammoth Lakes 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.