The Borough of Mountainside had a population of 6,846 as of July 1, 2020.
The primary coordinate point for Mountainside is located at latitude 40.6723 and longitude -74.3574 in Union County. The formal boundaries for the Borough of Mountainside encompass a land area of 4.01 sq. miles and a water area of 0.04 sq. miles. Union County is in the Eastern time zone (GMT -5). The elevation is 141 feet.
The Borough of Mountainside (GNIS ID: 885311) has a C5 Census Class Code which indicates an active incorporated place that is independent of any county subdivision and serves as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.
|Total Population||6,846 (100%)|
|Population in Households||6,693 (97.8%)|
|Population in Families||5,923 (86.5%)|
|Population in Group Quarters1||153 ( 2.2%)|
|Median Household Income||$162,452|
|Average Household Income||$208,667|
|% of Income for Mortgage4||17%|
|Per Capita Income||$76,460|
|Total HU (Housing Units)||2,606 (100%)|
|Owner Occupied HU||2,245 (86.1%)|
|Renter Occupied HU||262 (10.1%)|
|Vacant Housing Units||99 ( 3.8%)|
|Median Home Value||$656,398|
|Average Home Value||$718,366|
|Housing Affordability Index3||131|
|Average Household Size||2.67|
|Average Family Size||3|
GROWTH RATE / YEAR
|Median Household Income||1.19%|
|Per Capita Income||1.54%|
|Owner Occupied HU||0.16%|
The table below compares Mountainside to the other 545 incorporated cities, towns and CDPs in New Jersey by rank and percentile using July 1, 2020 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.
|Total Population||# 215||61st|
|Population Density||# 362||34th|
|Median Household Income||# 38||93rd|
|Housing Affordability Index||# 308||57th|
|Per Capita Income||# 52||91st|
|Diversity Index||# 330||40th|
Additional comparisons and rankings can be made with a VERY EASY TO USE New Jersey Census Data Comparison Tool.