Post Offices

Post Offices in & near Thornton, Colorado. Operating hours, locations, phone/fax number, services information.

Thornton Post Office

Post Office in Thornton, Colorado on Washington St. Operating hours, phone number, services information, and other locations.

Address: 8804 Washington St, Thornton, CO 80229
Phone: 303-227-7386
Fax: 303-287-8679
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457

Retail Hours

Monday 9:00am - 5:00pm
Tuesday 9:00am - 5:00pm
Wednesday 9:00am - 5:00pm
Thursday 9:00am - 5:00pm
Friday 9:00am - 5:00pm
Saturday 9:30am - 12:30pm
Sunday Closed

Lobby Hours

Monday 5:30pm
Tuesday 5:30pm
Wednesday 5:30pm
Thursday 5:30pm
Friday 5:30pm
Saturday 4:30pm
Sunday Closed

Last Collection Times

Monday 5:00am - 5:00pm
Tuesday 5:00am - 5:00pm
Wednesday 5:00am - 5:00pm
Thursday 5:00am - 5:00pm
Friday 5:00am - 5:00pm
Saturday 5:00am - 4:00pm
Sunday Closed

Northview Post Office

Address: 850 W 112th Ave, Northglenn, CO 80234
Phone: 303-457-6991
Fax: 303-457-0678
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457

Dupon Post Office

Address: 8096 Brighton Rd, Commerce City, CO 80022
Phone: 303-287-4296
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457

North Post Office

Address: 1411 Cortez St, Denver, CO 80221
Phone: 303-650-4931
Fax: 303-430-1813
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457

Northglenn Post Office

Address: 11887 Washington St, Northglenn, CO 80233
Phone: 303-452-2316
Fax: 303-254-8013
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457

Westminster Post Office

Address: 3051 W 105th Ave, Westminster, CO 80031
Phone: 303-464-9941
Fax: 303-464-0396
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457