South Plainfield is a township in Middlesex County, New Jersey, United States. It has an approximate population of 23,385 inhabitants. The population density is 1,084 people per square kilometer.
The postal code of South Plainfield is 07080, with area code: 908.
South Plainfield’s time zone is Atlantic Standard Time (EST). It is now 04:16 hours there.


The over all area of South Plainfield is 21.65 sq. kilometers of which 21.57 sq. kilometers is land and 0.40 sq. km is water. The height in meters of South Plainfield is 25.00 meters.
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