Post Offices
Post Offices in & near Hyannis, Massachusetts. Operating hours, locations, phone/fax number, services information.
Hyann Post Office
Post Office in Hyannis, Massachusetts on Main St. Operating hours, phone number, services information, and other locations.
Address: 385 Main St, Hyannis, MA 02601
Phone: 508-775-7344
Fax: 508-778-0058
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
Retail Hours
Monday 9:00am - 5:00pmTuesday 9:00am - 5:00pm
Wednesday 9:00am - 5:00pm
Thursday 9:00am - 5:00pm
Friday 9:00am - 5:00pm
Saturday 9:00am - 1:00pm
Sunday Closed
Lobby Hours
Monday 5:00pmTuesday 5:00pm
Wednesday 5:00pm
Thursday 5:00pm
Friday 5:00pm
Saturday 4:30pm
Sunday Closed
Last Collection Times
Monday 9:00am - 3:00pmTuesday 9:00am - 3:00pm
Wednesday 9:00am - 3:00pm
Thursday 9:00am - 3:00pm
Friday 9:00am - 3:00pm
Saturday 7:30am - 3:00pm
Sunday Closed