House Prices

House Prices & Home Values Mountainside, NJ 2026


Average Data

average house price$1,063,584
average size per house6095 ft²
average price per ft²175 $ / ft²

04/05/2026 - The value range (VR) for house prices in Mountainside, NJ is $172/ sqft to $172/ sqft. An average home with 6095 sqft costs approximately $1,048,340 to $1,048,340. Mountainside, NJ includes 1 ZIP codes and it is located in Union county. The lowest prices are found in ZIP 07092, while the highest are in ZIP 07092. The average price per sqare feet is $175. Our analysis is based on 12 property listings.

Avergage prices by ZIP codes Mountainside

07092182 $ / ft²




Historical development of home values in Mountainside

Year Estimated value (USD) Change vs. 2025
2010 $493,948 -53.6%
2011 $474,847 -55.4%
2012 $473,568 -55.5%
2013 $491,269 -53.8%
2014 $515,697 -51.5%
2015 $542,164 -49.0%
2016 $570,458 -46.4%
2017 $601,248 -43.5%
2018 $634,488 -40.3%
2019 $663,909 -37.6%
2020 $698,230 -34.4%
2021 $794,161 -25.3%
2022 $925,813 -13.0%
2023 $976,313 -8.2%
2024 $1,032,794 -2.9%
2025 $1,063,584 0.0%

Graph: estimated home values in Mountainside over time (USD)



Example: 100% financing house in Mountainside

Loan amount: $1,063,584

Interest rate: 6.00%

Fixed monthly payment: $6,376.72

Breakdown in the 1st month:
Interest portion: $5,317.92  –  Principal portion: $1,058.80

Yearly breakdown (100% financing)

Year Interest per year ($) Principal per year ($) Remaining balance at year-end ($)
1 $63,459.75 $13,060.94 $1,050,523.06
2 $62,654.18 $13,866.51 $1,036,656.56
3 $61,798.92 $14,721.76 $1,021,934.80
4 $60,890.91 $15,629.77 $1,006,305.03
5 $59,926.90 $16,593.78 $989,711.25
6 $58,903.44 $17,617.25 $972,094.00
7 $57,816.84 $18,703.84 $953,390.17
8 $56,663.23 $19,857.45 $933,532.72
9 $55,438.47 $21,082.21 $912,450.50
10 $54,138.16 $22,382.52 $890,067.98
11 $52,757.66 $23,763.02 $866,304.96
12 $51,292.01 $25,228.68 $841,076.28
13 $49,735.96 $26,784.73 $814,291.56
14 $48,083.93 $28,436.75 $785,854.81
15 $46,330.02 $30,190.67 $755,664.14
16 $44,467.92 $32,052.76 $723,611.38
17 $42,490.98 $34,029.70 $689,581.68
18 $40,392.10 $36,128.58 $653,453.10
19 $38,163.77 $38,356.91 $615,096.19
20 $35,798.00 $40,722.68 $574,373.50
21 $33,286.31 $43,234.37 $531,139.13
22 $30,619.71 $45,900.97 $485,238.16
23 $27,788.64 $48,732.04 $436,506.12
24 $24,782.95 $51,737.73 $384,768.39
25 $21,591.88 $54,928.80 $329,839.60
26 $18,204.00 $58,316.69 $271,522.91
27 $14,607.15 $61,913.53 $209,609.38
28 $10,788.46 $65,732.22 $143,877.16
29 $6,734.24 $69,786.44 $74,090.72
30 $2,429.96 $74,090.72 $0.00

Note: The calculation is based on a standard annuity mortgage with a fixed monthly payment over the entire term. Extra payments, interest rate changes, and additional purchase costs (e.g. taxes, notary fees) are not included.


How to sell in Mountainside, NJ


1500 sqft3900 sqft
Ø selling price$317,625$675,675
Ø fast selling$288,750$608,108
Ø high price sale$346,500$743,243

In 2026, houses in Mountainside, NJ will be offered at an average price of $175 per square foot. A 1,500 sqft home priced at $317,625 is 24.26% more expensive per square foot than a 3,900 sqft home priced at $675,675. Home prices in Mountainside, NJ vary significantly depending on the neighborhood and location. For a quick sale, a 2,700 sqft home should be listed at around $467,776. Sellers who can wait longer may achieve a higher price of up to $571,726.


Mountainside, NJ Overview

The borough of Mountainside, NJ sits along the Watchung Mountains in western Union County, New Jersey. Known for its small-town character and leafy streets, Mountainside New Jersey offers a peaceful suburban feel close to New York City.

Nature and Recreation

Residents enjoy direct access to the expansive Watchung Reservation, featuring miles of hiking trails, lakes, and the Trailside Nature & Science Center located in town. Nearby Echo Lake Park and neighborhood playgrounds add year-round options for picnicking, fishing, sledding, and community gatherings.

Transportation and Access

Commuters benefit from Route 22, I-78, and Garden State Parkway connections, with NJ Transit rail service available in adjacent Westfield and Summit stations.
The location makes day trips or regular commutes to Newark and Midtown Manhattan straightforward while preserving a quiet residential pace at home.

Schools and Education

The Mountainside School District serves K-8 students at Beechwood and Deerfield Schools, and most high schoolers attend Governor Livingston High School in Berkeley Heights via a sending-receiving relationship. Families also have options through the Union County Vocational-Technical Schools and nearby private and parochial programs.

Housing and Lifestyle

Housing in 07092 ranges from mid-century ranches and split-levels to expanded colonials, with a steady market for buyers seeking homes for sale in Mountainside NJ.
Local dining, boutique services along Route 22, and seasonal events from civic groups reinforce a friendly, close-knit community vibe.



FAQ – Home Values in Mountainside

What is the median home value in Mountainside in 2026?

In 2026, the typical home value in Mountainside is about $1,063,584 for an average home size of 6095 square feet. This corresponds to an average price of roughly $175 per square foot.

What is the average cost per square foot in Mountainside?

In 2026, homes in Mountainside sell for an average of around $175 per square foot, with a typical range between $172 and $172 per square foot, depending on the property’s location, condition, and lot size.

What is the average home size in ?

The average home size in Mountainside is about 6095 square feet, with an estimated 2026 value around $1,063,584.



Locations close to Mountainside, NJ

West New York, NJ554 $ / ft²
Secaucus, NJ268 $ / ft²
Woodbridge, NJ309 $ / ft²
Westfield, NJ396 $ / ft²
Vauxhall, NJ342 $ / ft²
Union City, NJ313 $ / ft²
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