Cost of living in Mountainside, NJ

Mountainside is a Census borough in Union County, NJ. ACS 2024 5-year population is 7,049. Median gross rent is $3,501 (ACS 2024 5-year, this place). Median home value is $810,300. Median household income is $211,538. Insurance is the NAIC state average; food is a USDA plan — no town indexes.