Post Offices
Post Offices in & near Simplot, Idaho. Operating hours, locations, phone/fax number, services information.
Caldwell Post Office
Post Office in Caldwell, Idaho on Arthur St. Operating hours, phone number, services information, and other locations.
Address: 823 Arthur St, Caldwell, ID 83605
Phone: 208-454-5560
Fax: 208-459-9304
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
Retail Hours
Monday 8:30am - 5:00pmTuesday 8:30am - 5:00pm
Wednesday 8:30am - 5:00pm
Thursday 8:30am - 5:00pm
Friday 8:30am - 5:00pm
Saturday 10:00am - 12:00pm
Sunday Closed
Lobby Hours
Monday 5:30pmTuesday 5:30pm
Wednesday 5:30pm
Thursday 5:30pm
Friday 5:30pm
Saturday 5:30pm
Sunday Closed
Last Collection Times
Monday 8:00am - 11:00am, 12:00pm - 2:45pmTuesday 8:00am - 11:00am, 12:00pm - 2:45pm
Wednesday 8:00am - 11:00am, 12:00pm - 2:45pm
Thursday 8:00am - 11:00am, 12:00pm - 2:45pm
Friday 8:00am - 11:00am, 12:00pm - 2:45pm
Saturday 8:00am - 11:45am
Sunday Closed