Firth Post Office Hours

Sponsored Listings:

Retail Hours

Contact Numbers:

Phone: 208-346-6611
Monday-Friday 8:30am - 11:30am, 12:30pm - 4:30pm
Saturday-Sunday Closed

Bulk Mail Acceptance Hours

Monday-Friday 8:30am - 11:30am, 12:30pm - 4:00pm
Saturday-Sunday Closed

Monday-Friday 8:30am - 11:30am, 12:30pm - 4:30pm
Saturday 6:30am - 8:00am
Sunday Closed

Lobby Hours

Monday-Sunday 12:01am - 11:59pm

USPS Shipping Rate Calculator


323 N Main St
Firth, ID 83236

The Firth Post Office is located in the state of Idaho within Bingham County. This location serves 2,275 Firth residents with a median income of $57,829. It's estimated that approximately 3,631 packages pass through this post office each year.

Firth Post Office Location

Firth Idaho Local Links