SENECA POST OFFICE 61360

Seneca Post Office Hours

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Retail Hours

Monday-Friday 9:00am - 12:30pm, 1:30pm - 4:30pm
Saturday 9:00am - 11:00am
Sunday Closed

Bulk Mail Acceptance Hours

Monday-Friday 9:00am - 12:30pm, 1:30pm - 3:00pm
Saturday 9:00am - 11:00am
Sunday Closed

Monday-Friday 9:00am - 12:30pm, 1:30pm - 4:30pm
Saturday 9:00am - 11:00am
Sunday Closed

Lobby Hours

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

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

Last Collection Times

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Ralph F White (Postmaster) ralph.f.white@usps.gov
121 E Armour St
Seneca, IL 61360

The Seneca Post Office is located in the state of Illinois within La Salle County. This location serves 3,393 Seneca residents with a median income of $58,906. It's estimated that approximately 5,416 packages pass through this post office each year.

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