'Mountainside, NJ' definitions:

Mountainside, NJ -- U.S. borough in New Jersey

From: Gazetteer 2000
Name :
Mountainside, NJ -- U.S. borough in New Jersey
Population (2000) :
6602
Housing Units (2000) :
2478
Land area (2000) :
4.023762 sq. miles (10.421494 sq. km)
Water area (2000) :
0.033289 sq. miles (0.086219 sq. km)
Total area (2000) :
4.057051 sq. miles (10.507713 sq. km)
FIPS code :
48510
Located within :
New Jersey (NJ), FIPS 34
Location :
40.680301 N, 74.356011 W
ZIP Codes (1990) :
07092
Note :
some ZIP codes may be omitted esp. for suburbs.