Humboldt County, IA mailboxes and post offices

There are 18 United States Postal Service post boxes and offices available to the public in Humboldt County. You can use any one of these locations to mail your letter or package via USPS. For additional collection boxes in neighboring communities, see the list of mailboxes in Iowa.

Post Offices and Mailboxes in Iowa

Where to buy postage stamps in Humboldt County, IA

Public Collection Box
109 Dewitt St
Directions
Public Collection Box
106 N Clinton Ave
Directions
Public Collection Box
611 10 Th Ave N
Directions
Public Collection Box
411 13 Th St S
Directions