Apartments for Rent in Mountainside, NJ

Prices and availability in Mountainside, NJ were last updated on 23 May 2026.

The best apartment in Mountainside, NJ is: Alpine at Mountainside Townhomes.

The price range for a 2-bedroom apartment in Mountainside, NJ is between $4,000 and $6,300.

The price range for a 3-bedroom apartment in Mountainside, NJ is between $4,000 and $6,300.

In Mountainside, 12% of the residents are renting compared to 88% owning a home, according to data from the U.S. Census Bureau. Large-scale apartment buildings with more than 50 units represent none of Mountainside's rentals, 11% are small-scale complexes with under 50 units, and 89% are single-family rentals.

The average age of rental buildings in Mountainside is 0 years old, with none being newer apartment buildings completed since 2000. The average height of apartment buildings in the city is 0 stories, of which none are garden-style apartment communities, none are mid-sized buildings, and none are high-rises. These characteristics describe large-scale apartment communities of 50 apartments or more.

Rental apartments in Mountainside come in a range of sizes and floorplans. Studio apartments represent 0% of units for rent, ideal for singles, renters on a budget and people who value central locations more than space. Rentals with 1-bedroom floorplans make up 0% of the total apartments in the city, while 2-bedroom floorplans represent around 0% of all rentals in Mountainside. The rest are larger floorplans with 3 bedrooms or more, typically preferred by families, larger households or roommates sharing space.