View 373 Upland Rd Mountainside, NJ MLS# 4010276
$849,000
4

Beds

3.0

Baths

373 Upland Rd

Mountainside, NJ

View 170 New Providence Rd Mountainside, NJ MLS# 4003019
$1,159,000
5

Beds

3.1

Baths

170 New Providence Rd

Mountainside, NJ

View 170 New Providence Road Mountainside, NJ MLS# 22537536
$1,159,000
5

Beds

3.1

Baths

2,751

Sq.Ft.

170 New Providence Road

Mountainside, NJ

The time to sell is now! THE TIME TO SELL IS NOW!
View 427 Summit Rd Mountainside, NJ MLS# 4000849
$300,000
Studio

Beds

0.0

Baths

427 Summit Rd

Mountainside, NJ

View 1098 Sunny Slope Dr Mountainside, NJ MLS# 4000352
$825,000
3

Beds

2.0

Baths

1098 Sunny Slope Dr

Mountainside, NJ

View 1167 Route 22 Mountainside, NJ MLS# 3989350
$1,950,000
7,448

Sq.Ft.

1167 Route 22

Mountainside, NJ

Courtesy of Weichert Realtors - Westfield
View 423 Summit Rd Mountainside, NJ MLS# 3974821
$599,000
Studio

Beds

0.0

Baths

423 Summit Rd

Mountainside, NJ

View 855-859 Mountain Ave Mountainside, NJ MLS# 3911647
$4,790,000
12,000

Sq.Ft.

855-859 Mountain Ave

Mountainside, NJ

About Mountainside

Mountainside Borough is an attractive, residential community featuring an abundance of trees and a hilly terrain that clarifies the meaning of its name.  Single-family homes dominate the housing selection, most of which are beautiful, well-kept older homes on expansive lots. The downtown retail center is complemented by several major malls within a 10-minute drive, and residents enjoy good highway access to amenities in surrounding urban centers. Recreational attractions in the borough and nearby include a fitness trail, Echo Park, Watchung Reservation, Surprise Lake, athletic fields, tennis courts, swimming pools, private clubs, senior programs, and supervised recreational programs.

Listings in Mountainside, NJ

28

Estimated median home price

$1,072,500
Mountainside NJ Homes for Sale & Properties

Weichert Realtors is one of the nation's leading providers of Mountainside, New Jersey real estate for sale and home ownership services. Contact Weichert today to buy or sell real estate in Mountainside, NJ.

Homes for Sale by Price in Mountainside, NJ

PriceCount
$0 - 100K0
$100K - 200K0
$200K - 300K1
$300K - 400K0
$400K - 500K0
$500K - 600K1
$600K - 700K1
$700K - 800K1
$800K - 900K4
$900K - 1M6
$1M - Max14

Homes for Sale by Type in Mountainside, NJ

Property TypeCount
Single Family24
Townhouse0
Condo0
Commercial2
Rental0
Lots and Land2
Condo/Town/CoOp0
CoOp0
Multi Family0
Mobile Home0
Farms0

(Data as of 4/16/2026)

Information deemed reliable but not guaranteed.

The data relating to the real estate for sale on this web site comes in part from the Internet Data Exchange Program of the NJMLS. Real estate listings held by brokerage firms other than Weichert Realtors are marked with the Internet Data Exchange logo and information about them includes the name of the listing brokers. Some properties listed with the participating brokers do not appear on this website at the request of the seller. Listings of brokers that do not participate in Internet Data Exchange do not appear on this website.

All information deemed reliable but not guaranteed. Last date updated: 4/18/2026.

Source: New Jersey Multiple Listing Service, Inc.

© 2026 New Jersey Multiple Listing Service, Inc. All rights reserved.

The data relating to real estate for sale on this website comes in part from the IDX Program of Garden State Multiple Listing Service, L.L.C. Real estate listings held by other brokerage firms are marked as IDX Listing.

Information deemed reliable but not guaranteed.

Copyright © 2026 Garden State Multiple Lis ting Service, L.L.C. All rights reserved.

Notice: The dissemination of listings on this website does not constitute the consent required by N.J.A.C. 11:5.6.1 (n) for the advertisement of listings exclusively for sale by another broker. Any such consent must be obtained in writing from the listing broker.

This information is being provided for Consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties Consumers may be interested in purchasing.