<-- (Mountainhome) Previous || Next (Mountainview) -->
 
Mountainside

1. Mountainside, New Jersey, United States [Borough]; population was 6,657 in 1990; housing units was 2,454 in 1990; location is 40°41'N 74°22'W; land area is 4.02 square miles (2,574 acres); water area is 0.03 square miles (21 acres); FIPS code is 48510 [SourceCBP]
2. Mountainside, New Jersey, United States [Populated Place] is in Union County; location is 40°40'20"N 74°21'28"W; elevation is 142 feet [SourceGSP]
3. Westfield, New Jersey, United States Postal Service Zip Code is 07092 (Mountainside) [SourcePSZ]