USPS Locations in SENECA, IL

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There are a total of 2 USPS locations in SENECA, IL. To view maps and directions, operating hours, their phone number, and reviews please select the mailing location you are interested in from the list below.

USPS Locations

121 E Armour St Post Office - USPS
USPS Small Logo

121 E ARMOUR ST - 61360
Post Office

270 E Jackson St Non-Postal Facility - USPS
USPS Small Logo

270 E JACKSON ST - 61360
Non-Postal Facility