U.S. Post Office
10650 Reagan St.
Los Alamitos, Ca 90720
Phone: (562) 594-0286 or (800) 275-8777
Website: USPS.com

Hours:
Mon – Fri: 9 a.m. to 5:30 p.m.
Sat: 9 a.m. to 12 p.m.
Sun: Closed