Postal services in South Plainfield
- United States Postal ServiceUnited States Postal ServiceClosed until tomorrowUnited States, Scotch Plains, 536 Park Ave
- United States Postal ServiceUnited States Postal ServiceClosed until tomorrowUnited States, Martinsville, 1990 Washington Valley Rd
- United States Postal ServiceUnited States Postal ServiceClosed until tomorrowUnited States, Clark, 1087 Raritan Rd
- United States Postal ServiceUnited States Postal ServiceClosed until tomorrowUnited States, Sewaren, 85 Woodbridge Ave
- United States Postal ServiceUnited States Postal ServiceClosed until tomorrowUnited States, Fords, 450 New Brunswick Ave
