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Thornton Post Office Hours

Retail Hours

Monday-Friday 9:00am - 5:00pm
Saturday 9:30am - 12:30pm
Sunday Closed

Bulk Mail Acceptance Hours

Monday-Friday 5:00am - 5:00pm
Saturday 5:00am - 4:00pm
Sunday Closed

Monday-Saturday 9:00am - 5:00pm
Sunday Closed

Lobby Hours

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

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Pamala Stambaugh (Postmaster)
8804 Washington St
Thornton, CO 80229

The Thornton Post Office is located in the state of Colorado within Adams County. This location serves 49,598 Thornton residents with a median income of $48,004. It's estimated that approximately 79,164 packages pass through this post office each year.

Thornton Post Office Location

Thornton Colorado Local Links