Los Alamos National Bank Address: 1200 Trinity Dr, Los Alamos, NM 87544 Phone: (800) 684-5262 Hours: Mon: 9am-5pm Tue: 9am-5pm Wed: 9am-5pm Thu: 9am-5pm Fri: 9am-6pm Sat: 9am-12pm Banks, Automated Teller Machines Other Businesses: Zia Credit Union at 1001 Central Avenue, Los Alamos, NM 87544 Community Bank at 1475 Central Ave, Los Alamos, NM 87544 American Red Cross at 475 20th St, Los Alamos, NM 87544 First National Bank-Sante Fe at 1910 Trinity Dr, Los Alamos, NM 87544