Bobby J Smith (Postmaster)
bobby.j.smith@usps.gov
135 S Black Horse Pike
Williamstown, NJ 08094
Williamstown, NJ 08094
The Williamstown Post Office is located in the state of New Jersey within Gloucester County. This location serves 39,940 Williamstown residents with a median income of $70,905. It's estimated that approximately 63,749 packages pass through this post office each year.