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Mountainside, NJ City Limits stuff
Mountainside is in Union County, New Jersey, covers 4.0 square miles, and had an estimated 7,228 residents in July 2024, per the US Census Bureau.
Towns near Mountainside
Westfield, NJ (2 mi) Summit, NJ (2 mi) New Providence, NJ (3 mi) Garwood, NJ (3 mi) Fanwood, NJ (3 mi) Kenilworth, NJ (4 mi)
Westfield, NJ (2 mi) Summit, NJ (2 mi) New Providence, NJ (3 mi) Garwood, NJ (3 mi) Fanwood, NJ (3 mi) Kenilworth, NJ (4 mi)