Courthouses in Los Alamos, New Mexico, the US. Courthouses locations in Los Alamos, New Mexico. Find the nearest courthouses locations, near you. All types of business services Accounting ATM Bank Courthouse Finance Insurance Lawyer Real estate School Travel All courthouses in Los Alamos Los Alamos County Magistrate Ct Courthouse +1 505-662-2727 2500 Trinity Drive, Los Alamos, New Mexico 87544 Write a review Phone Website Directions