MAZON POST OFFICE 60444

Mazon Post Office Hours


Retail Hours

Contact Numbers:

Phone: 815-448-5697
Monday-Friday 9:00am - 11:30am, 12:30pm - 4:30pm
Saturday 9:30am - 11:30am
Sunday Closed

Bulk Mail Acceptance Hours

Monday-Friday 9:00am - 11:30am, 12:30pm - 4:30pm
Saturday-Sunday Closed

Monday-Friday 9:00am - 11:30am, 12:30pm - 4:30pm
Saturday 9:30am - 11:30am
Sunday Closed

Lobby Hours

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

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

PO Box Delivery Time

Monday-Saturday 9:45am
Sunday Closed

USPS Shipping Rate Calculator

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Gregory Gillespie (Postmaster) gregory.j.gillespie@usps.gov
600 Depot St
Mazon, IL 60444

The Mazon Post Office is located in the state of Illinois within Grundy County. This location serves 1,761 Mazon residents with a median income of $70,362. It's estimated that approximately 2,811 packages pass through this post office each year.

Mazon Post Office Location


Mazon Illinois Local Links