Townapedia
Echo Lake Park in Mountainside NJ autumnal scene
Echo Lake Park in Mountainside NJ autumnal scene · Tomwsulcer, CC0
Deacon Andrew Hetfield House, Mountainside, NJ
Deacon Andrew Hetfield House, Mountainside, NJ · Josconklin, CC BY-SA 3.0
2021-07-20 13 41 35 View west along U.S. Route 22 from the pedestrian overpass just east of Union County Route 645 (New Providence Road) in Mountainside, Union County, New Jersey
2021-07-20 13 41 35 View west along U.S. Route 22 from the pedestrian overpass just east of Union County Route 645 (New Providence Road) in Mountainside, Union County, New Jersey · Famartin, CC BY-SA 4.0
Mountainside, NJ municipal building, April 2026
Mountainside, NJ municipal building, April 2026 · Mr. Matté (if there is an issue with this image, contact..., CC BY-SA 4.0
US 22 wb approaching Evergreen Court, Mountainside, NJ, April 2026
US 22 wb approaching Evergreen Court, Mountainside, NJ, April 2026 · Mr. Matté (if there is an issue with this image, contact..., CC BY-SA 4.0
2021-07-20 13 44 28 View east along U.S. Route 22 from the pedestrian overpass just east of Union County Route 645 (New Providence Road) in Mountainside, Union County, New Jersey
2021-07-20 13 44 28 View east along U.S. Route 22 from the pedestrian overpass just east of Union County Route 645 (New Providence Road) in Mountainside, Union County, New Jersey · Famartin, CC BY-SA 4.0

Mountainside, New Jersey

Mountainside is a borough of 7,049 people in Union County, New Jersey.

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Population7,049 +3.3% since 2019
Elevation233 ft 71 m
Land area4.0 sq mi
ZIP code07092
Nearest airportLinden Airport (LDJ) 7 mi

Why visit Mountainside

Townapedia lists 37 museums and landmarks, 21 parks and trails, 15 places to eat, 1 place to stay and 3 attractions in and around town.

Highlights include AMC Mountainside 10, Bowcraft Amusement Park, Miller-Cory House Museum and Deacon Andrew Hetfield House.

July is the warmest month, with average highs of 86°F; January lows average 25°F, and about 26 inches of snow fall in a normal year.

About Mountainside

Mountainside is a borough in Union County, in the U.S. state of New Jersey. The borough is located on a ridge in northern-central New Jersey, within the Raritan Valley and Rahway Valley regions in the New York metropolitan area. As of the 2020 United States census, the borough's population was 7,020, an increase of 335 (+5.0%) from the 2010 census count of 6,685, which in turn reflected an increase of 83 (+1.3%) from the 6,602 counted in the 2000 census.

From the Wikipedia article Mountainside, New Jersey (this version), under CC BY-SA 4.0.

Things to do3

AMC Mountainside 10

Cinema and theater · 1.3 mi

1021 US 22, Mountainside

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Bowcraft Amusement Park

Monument and historic site · 1.8 mi

Amusement park in New Jersey, United States

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Rialto Theatre

Cinema and theater · 2.1 mi

Open in Google Maps

Museums and landmarks37

Miller-Cory House Museum

Museum · 1.4 mi

614 Mountain Avenue East, Westfield

14:00-16:00

Open in Google Maps · +1 908-232-1776

Deacon Andrew Hetfield House

Monument and historic site · National Register of Historic Places · 0.6 mi

Historic house in New Jersey, United States

Open in Google Maps · Wikipedia

Baltusrol Golf Club

Monument and historic site · National Register of Historic Places · 2.4 mi

Golf course in New Jersey, USA

Open in Google Maps · Wikipedia

Fanwood

Monument and historic site · National Register of Historic Places · 2.4 mi

NJ Transit rail station

Open in Google Maps · Wikipedia

Feltville Historic District

Monument and historic site · National Register of Historic Places · 1.4 mi

Human settlement in New Jersey, United States of America

Open in Google Maps · Wikipedia

Hutchings Homestead

Monument and historic site · National Register of Historic Places · 3.5 mi

Building in New Jersey, United States

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John De Camp House

Monument and historic site · National Register of Historic Places · 3.8 mi

Historic house in New Jersey, United States

Open in Google Maps · Wikipedia

Littel-Lord Farmstead

Monument and historic site · National Register of Historic Places · 3.7 mi

Building in New Jersey, United States

Open in Google Maps · Wikipedia

Miller-Cory House

Monument and historic site · National Register of Historic Places · 1.4 mi

Historic house in New Jersey, United States

Open in Google Maps · Wikipedia

Mount Vernon School

Monument and historic site · National Register of Historic Places · 3.6 mi

Historic building in Morris County, New Jersey

Open in Google Maps · Wikipedia

Murray Hill

Monument and historic site · National Register of Historic Places · 2.5 mi

NJ Transit rail station

Open in Google Maps · Wikipedia

Nathaniel Smith House

Monument and historic site · National Register of Historic Places · 3.7 mi

Union County, New Jersey, United States

Open in Google Maps · Wikipedia

25 more on the map.

Parks, trails and playgrounds21

Shady Rest Country Club

Golf course · 1.8 mi

Historic Shady Rest Golf and Country Club.

820 Jerusalem Road

Open in Google Maps · Wikipedia

Baltusrol Golf Course

Golf course · 1.9 mi

201 Shunpike Road, Springfield

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Brightwood Park

Park · 1.5 mi

Open in Google Maps

Clark Memorial Park

Park · 2.0 mi

Open in Google Maps

Echo Lake Park

Park · 1.0 mi

Open in Google Maps

Irwin Playground

Park · 1.3 mi

Open in Google Maps

Mindowaskin Park

Park · 1.9 mi

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Soldiers Memorial Field

Park · 1.9 mi

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Boy Scout Camping Area, Watchung Reservation

Park · 0.9 mi

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Demonstration Gardens of the Master Gardeners of Union County, NJ

Park · 0.8 mi

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9 more on the map.

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Restaurants and cafes15

Echo Tap & Grille

Diner · American · 1.1 mi

1079 Route 22 East, Mountainside

Mo-Su 11:00-22:00

Open in Google Maps · +1-908-264-7100

Outback Steakhouse

Restaurant · American, Steak · 1.4 mi

901 Mountain Avenue, Springfield

Mo-Th 11:00-22:00; Fr,Sa 11:00-23:00; Su 11:00-21:00

Open in Google Maps · +1 973-467-9095

Starbucks

Cafe · Coffee Shop · 2.1 mi

117 Central Avenue, Westfield

Open in Google Maps · +1 908-789-8424

Bovella's Bakery Cafe

Bakery · 1.1 mi

1085 Route 22 East, Mountainside

Open in Google Maps · +1-908-228-2937

Stage House Tavern

Restaurant · 1.1 mi

1099 US 22, Mountainside

Open in Google Maps · +1-908-731-0366

Ahrre's Coffee Roastery

Restaurant · Coffee · 2.1 mi

104 Elm Street, Westfield

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Arirang

Restaurant · Asian, Hibachi · 0.7 mi

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Char Steakhouse

Restaurant · Steak House · 2.0 mi

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Cold Stone Creamery

Ice cream · Ice Cream · 2.1 mi

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Famous Dave's

Restaurant · Barbecue · 0.7 mi

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Korean BBQ

Restaurant · Asian · 2.1 mi

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Tinga

Restaurant · Mexican · 2.1 mi

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3 more on the map.

History

In 1958, part of Nike missile battery (NY-73) was installed, with the missile launchers themselves in Mountainside while the radar station was installed in Berkeley Heights. It remained in operation until 1963. Remnants of the control site are located adjacent to Governor Livingston High School, while the part of Watchung Reservation that was cleared in order to accommodate the missile launchers became the Watchung Stables.

From the History section of Mountainside, New Jersey on Wikipedia, under CC BY-SA 4.0.

Where to stay1

Churches and places of worship18

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Shopping5

Gas and EV charging5

Schools, colleges and libraries63

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Healthcare2

Map of Mountainside

170 places. The map loads OpenStreetMap tiles when you open it.

Climate by month

20°40°60°80°January: 3.7 in of rainFebruary: 3.3 in of rainMarch: 4.4 in of rainApril: 4.0 in of rainMay: 4.2 in of rainJune: 4.5 in of rainJuly: 5.3 in of rainAugust: 4.1 in of rainSeptember: 4.2 in of rainOctober: 4.4 in of rainNovember: 3.6 in of rainDecember: 4.5 in of rainJanuary: 40°FFebruary: 43°FMarch: 51°FApril: 62°FMay: 72°FJune: 81°FJuly: 86°FAugust: 84°FSeptember: 77°FOctober: 66°FNovember: 55°FDecember: 45°FJanuary: 25°FFebruary: 27°FMarch: 33°FApril: 43°FMay: 52°FJune: 62°FJuly: 68°FAugust: 66°FSeptember: 59°FOctober: 47°FNovember: 38°FDecember: 30°FJFMAMJJASOND
Average high Average low Rain
Monthly table
MonthHighLowRainSnow
Jan40°F25°F3.7 in7.0 in
Feb43°F27°F3.3 in8.2 in
Mar51°F33°F4.4 in5.0 in
Apr62°F43°F4.0 in0.3 in
May72°F52°F4.2 in0.0 in
Jun81°F62°F4.5 in0.0 in
Jul86°F68°F5.3 in0.0 in
Aug84°F66°F4.1 in0.0 in
Sep77°F59°F4.2 in0.0 in
Oct66°F47°F4.4 in0.0 in
Nov55°F38°F3.6 in0.1 in
Dec45°F30°F4.5 in5.7 in

U.S. Climate Normals 1991-2020 for Cranford (2 mi away), NOAA NCEI.

People and cost of living

$211,538median household income
$810,300median home value
$3,501median monthly rent
48.0median age
67.3%of adults have a bachelor's degree or higher
87.9%of homes are owner-occupied
36.0 minaverage commute
Age of residents
Under 1822%18 to 3410%35 to 6444%65 and over24%

American Community Survey 5-year estimates, 2020-2024, U.S. Census Bureau. Estimates have margins of error, larger for small towns.

Disaster history

Union County has had 18 federal disaster declarations since 2000, most often for hurricanes.

  • 2021-09-05: Remnants Of Hurricane Ida (Hurricane)
  • 2021-09-02: Remnants Of Hurricane Ida (Hurricane)
  • 2020-03-25: Covid-19 Pandemic (Biological)
  • 2020-03-13: Covid-19 (Biological)
  • 2016-03-14: Severe Winter Storm And Snowstorm (Severe Storm)
  • 2012-10-30: Hurricane Sandy (Hurricane)

OpenFEMA disaster declarations summaries.

Getting there and nearby towns

Linden Airport (LDJ) is the nearest airport with scheduled flights listed in OpenStreetMap, 7 miles away.

Drive times are estimates from straight-line distance, not routes.

Reviews, tips and questions

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Sources and licences

Photo credits

Page built October 30, 2026. Spotted a mistake? Tell us or suggest a place.