Cheryl L Alston (Postmaster)
cheryl.l.alston@usps.gov
114 Oak Tree Ave
South Plainfield, NJ 07080
South Plainfield, NJ 07080
The South Plainfield Post Office is located in the state of New Jersey within Middlesex County. This location serves 23,377 South Plainfield residents with a median income of $91,267. It's estimated that approximately 37,312 packages pass through this post office each year.