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 between September 24, 2026 and October 9, 2026.
Los Alamos County, New Mexico, has about 20,000 residents (2024 Census Bureau estimate), and arrests there are reported to the FBI by one city agency. 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 District Court for Los Alamos 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 how many arrests, booking and the jail, finding an arrest, copies and common questions.
Related guides: Los Alamos County public records, New Mexico arrest records, New Mexico inmate search and New Mexico criminal records.
How Many Arrests Los Alamos 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.
- Los Alamos: 5 for 2025, 8 for 2024, 46 for 2022 and 33 for 2019; 2020, 2021 and 2023 are missing months.
Through August 2026, Los Alamos reported 4 arrests, against 5 in the same months of 2025.
Booking: Where People Arrested in Los Alamos County Are Held
A person kept in custody after an arrest in Los Alamos 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 2023 the jail held about 5 people, down from about 15 in 2019. Its rated capacity in 2019, the last year with a capacity figure, was 32 beds, and it ran at 47 percent of it that year. The figures are from the Vera Institute of Justice's Incarceration Trends data.
A person sentenced to prison serves the sentence in a facility of the New Mexico Corrections Department, whose inmate locator is at cd.nm.gov.
How to Find Out About an Arrest in Los Alamos County
An arrest in Los Alamos County can be traced in two places, depending on where the case stands: the case index of the District Court for Los Alamos County, kept by the Clerk of the District Court, which shows whether charges were filed and the next court date; the District Attorney, which decides whether an arrest becomes a charge (its page is at nmdas.com/judicial-districts/first-judicial-district, phone (505) 827-5000).
The court records page SearchSystems verified for the county, at firstdistrict.nmcourts.gov/about-this-district/court-dockets/los-al... (page title: Los Alamos County Magistrate Court Docket | Los Alamos, NM | First Judicial District), belongs to a lower court, not to the District Court for Los Alamos County.
Statewide, New Mexico Courts Case Lookup is the New Mexico Judiciary's free statewide case search.
New Mexico does not let the public search another person's statewide criminal history. The record kept by the New Mexico Department of Public Safety 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 Los Alamos County
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 Inspection of Public Records Act the agency must answer within 15 calendar days, after acknowledging the request within 3 business days, and it may charge copying at no more than $1 a page.
- A defendant who has been charged gets the report through the case: the District Attorney, (505) 827-5000, handles discovery for pending cases.
- The court file of a case that was filed: in the District Court for Los Alamos County it is kept by the Clerk of the District Court. The court records page SearchSystems verified for the county, at firstdistrict.nmcourts.gov, is a lower court's.
- Any county record that is not posted: the county records request page SearchSystems verified is at losalamosnm.gov (page title: Request To Inspect Public Records Online Form | Incorporated County of Los Alamos, NM).
- Your own statewide record: a fingerprint-based request to the Department of Public Safety.
The other Los Alamos County guides go further: warrants, criminal records, court records, traffic tickets and property records.
Frequently Asked Questions
How many arrests are made in Los Alamos County each year?
Los Alamos reported 5 arrests to the FBI for 2025, its latest full year.
Where are people arrested in Los Alamos County booked?
Those kept in custody go to the county jail; a person cited and released at the scene is not booked.
Are arrest records public in Los Alamos County?
The court files of criminal cases in the District Court for Los Alamos County are public and can be looked up through the court. The statewide criminal history kept by the New Mexico Department of Public Safety is not public; you can get your own. The arrest report itself is released by the agency that made the arrest, under the Inspection of Public Records Act.
How do I get a copy of an arrest report in Los Alamos County?
From the agency that made the arrest: the sheriff's office or the city's police. Under the Inspection of Public Records Act the answer is due within 15 calendar days, after acknowledging the request within 3 business days; the county records request page SearchSystems verified is at losalamosnm.gov.
Is this the official Los Alamos 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.