Los Alamos County, website
Los Alamos County in New Mexico uses area codes 505 and 575. On this page, you will see the physical addresses and contact information of the most relevant government agencies in Los Alamos, including the Clerk’s Office, Sheriff’s Office, and the Health Department.
Sheriff’s Office
2500 Trinity Drive
Los Alamos, New Mexico, 87544
Phone: (505) 662-8028
Fax: (505) 663-3501
Police Department
2500 Trinity Drive
Los Alamos, New Mexico, 87544
Phone: (505) 662-8222
Fax: (505) 662-8287
County Court
1319 Trinity Drive
Los Alamos, New Mexico, 87544
Phone: (505) 662-2727
Fax: (505) 661-6258
Municipal Court
2500 Trinity Drive
Los Alamos, New Mexico, 87544
Phone: (505) 662-8025
Fax: (505) 662-8365
County Clerk
1000 Central Avenue
Los Alamos, New Mexico, 87544
Phone: (505) 662-8010
Treasurer
P. O. Box 99
Los Alamos, New Mexico, 87544
Phone: (505) 662-8070
Tax Assessor-Collector
1000 Central Avenue
Los Alamos, New Mexico, 87544
Phone: (505) 662-8030
Fax: (505) 663-1764
Los Alamos County Jail
2500 Trinity Drive
Los Alamos, New Mexico, 87544
Phone: (505) 662-8028
Fax: (505) 662-8287
Emergency Management
1000 Central Avenue
Los Alamos, New Mexico, 87544
Phone: (505) 662-8283
Fire Department
195 East Road
Los Alamos, New Mexico, 87544
Phone: (505) 662-8305
Fax: (505) 662-8302
Health Department
1183 Diamond Drive
Los Alamos, New Mexico, 87544
Phone: (505) 662-4038
Human Services Department
1183 Diamond Drive, Ste. E
Los Alamos, New Mexico, 87544
Phone: (505) 591-9444