Cost of living in South Plainfield, NJ

South Plainfield is a Census borough in Middlesex County, NJ. ACS 2024 5-year population is 24,473. Median gross rent is $2,107 (ACS 2024 5-year, this place). Median home value is $470,900. Median household income is $130,239. Insurance is the NAIC state average; food is a USDA plan — no town indexes.