Post Offices

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

Darien Post Office

Post Office in Darien, Wisconsin on E Beloit St. Operating hours, phone number, services information, and other locations.

Address: 1 E Beloit St, Darien, WI 53114
Phone: 262-724-3339
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457

Retail Hours

Monday 9:30am - 1:00pm, 2:00pm - 4:30pm
Tuesday 9:30am - 1:00pm, 2:00pm - 4:30pm
Wednesday 9:30am - 1:00pm, 2:00pm - 4:30pm
Thursday 9:30am - 1:00pm, 2:00pm - 4:30pm
Friday 9:30am - 1:00pm, 2:00pm - 4:30pm
Saturday 10:00am - 11:30am
Sunday Closed

Lobby Hours

Monday 4:30pm
Tuesday 4:30pm
Wednesday 4:30pm
Thursday 4:30pm
Friday 4:30pm
Saturday 11:00am
Sunday Closed

Last Collection Times

Monday 9:30am - 1:00pm
Tuesday 9:30am - 1:00pm
Wednesday 9:30am - 1:00pm
Thursday 9:30am - 1:00pm
Friday 9:30am - 1:00pm
Saturday Closed
Sunday Closed