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Post Offices in South River

Click on the Post Office from this list of 1 Post Offices in South River to view the opening hours, phone number, drop-off times, services and other information.

1. USPS Post Office South River (NJ)

South River, NJ 08882

The Post Office is open Monday to Friday from 10:00 am to 5:00 pm and on Saturday from 10:00 am to 4:00 pm. It is closed on Sunday.