Apartments for Rent in Mountainside, NJ (217 Rentals)

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Renters Insurance 101: What It Is, What It Covers, and Why You Need It

From theft to fire to water damage, the unexpected can happen to any renter. Discover why renters insurance is one of the smartest and most affordable investments you can make as a tenant.

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333 Central
Rent Specials
$2,408 - $4,558

Total Monthly Price

Base Rent$2,408 - $4,558
Total Monthly PriceVaries
1 to 2 Bedroom Apartments Available Now

333 Central

333 Central AveWestfield, NJ 07090
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How I Find the Perfect Rental for My Clients: A Real Estate Pro's Guide

Finding the right apartment starts with three things: location, cost, and amenities. Get the insider perspective from a real estate professional on how to nail all three.

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Neighborhood & Market Insights: How to Choose the Right Area to Rent

Master your search for the perfect apartment. Location is everything. Discover how to leverage community insights, public data, and personal visits to make a fully informed decision about where to rent.

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159 E Broad St, Unit 1
$4,900

Total Monthly Price

Base Rent$4,900
Total Monthly Price$4,900
2 Bedroom Apartment Available Now

159 E Broad St, Unit 1

159 E Broad StWestfield, NJ 07090
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300 South Ave, Unit 2
$2,350

Total Monthly Price

Base Rent$2,350
Total Monthly Price$2,350
1 Bedroom Apartment Available Now

300 South Ave, Unit 2

300 South AveGarwood, NJ 07027
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444 Myrtle Ave, Unit 1
$2,700

Total Monthly Price

Base Rent$2,700
Total Monthly Price$2,700
2 Bedroom Apartment Available Oct 15

444 Myrtle Ave, Unit 1

444 Myrtle AveScotch Plains, NJ 07076

The Art of the Rental Viewing: What to look for during a property tour

Touring a rental? This guide helps you know exactly what to look for, from safety features to hidden flaws, so you can confidently sign your lease or keep searching.

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property at 227 South Ave W
$1,900

Total Monthly Price

Base Rent$1,900
Total Monthly Price$1,900
1 Bedroom, 1 Bath Condo for Rent
Available Now
Affordability

227 South Ave W, Unit 3

227 South Ave W
WestfieldNJ07090
property at 10 Troy Dr
$2,800

Total Monthly Price

Base Rent$2,800
Total Monthly Price$2,800
2 Bedroom, 1 Bath Condo for Rent
Available Oct 1

10 Troy Dr, Unit B

10 Troy Dr
SpringfieldNJ07081
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Smart Renter's Guide: Calculating Affordable Rent & Housing Costs

Wondering how to determine your rental budget? This comprehensive guide covers everything from the 30% rule to hidden fees and effective budgeting strategies.

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Mountainside, NJ Local Guide

A Seasoned Property Manager's Step-by-Step Guide to Getting Your Deposit Back

Learn the property manager's true secrets to a zero-deduction move-out. Use this step-by-step guide on documentation, cleaning, and lease-reading to reclaim your security deposit.

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18 Must-Ask Rental Tour Questions That Reveal the Truth about a Property

Tour smarter and choose with confidence. Get the essential 18 questions that reveal the truth about a rental property's maintenance, utilities, and safety.

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Navigating the Rental Market: Tips for First-Time Renters

Entering the rental market? Learn these simple tips and strategies to avoid common pitfalls and make confident choices. Rent with peace of mind.

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Real Estate and Rental Term Glossary | ApartmentHomeLiving.com Renter University

From the letter A all the way to the letter Z, the Real Estate and Rental Term Glossary from the content team at ApartmentHomeLiving.com provides our visitors and shoppers with a little clarity and helpful guidance in navigating the real estate world through definitions and explainers for the top subjects and terms that someone may come across during the leasing, buying, or selling process.

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Quick Rent Budget Calculator

How much rent can you afford?

The common "Rule of Thumb" is that rent should be no more than 30% of your income. How much is that? Enter your monthly income and click "Calculate My Budget" to find out.

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Remember the 3 Rules of Real Estate:
Location, Location, Location!

Explore Mountainside, NJ Rentals by Map

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See the most popular apartments and homes in Mountainside, NJ

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Frequently Asked Questions about Mountainside

What is the current pricing and availability for apartments for rent in Mountainside, NJ?

As of today, September 16, 2026, there are currently 217 available Mountainside apartments priced from $1,600 to $7,250, with an average monthly rent of $3,420.

What is the current price range for One Bedroom Mountainside Apartments for rent?

Today's rental pricing for One Bedroom Apartments in Mountainside ranges from $1,750 to $4,750 with an average monthly rent of $2,760.

What does renting a Two Bedroom Apartment in Mountainside cost?

The monthly rent prices of Two Bedroom Apartments currently available in Mountainside range from $1,700 to $7,250. Today's average rental price for Two Bedrooms here is $3,778.

How expensive are Mountainside Three Bedroom Apartments?

There are currently 31 Three Bedroom Apartments listings available in Mountainside on ApartmentHomeLiving.com. The pricing ranges from $2,875 to $6,995 - averaging $4,564 for the location.

Expert Rental Resources

The rental experts at ApartmentHomeLiving.com provide you with top advice, tools, and tips for understanding the leasing process and finding the perfect rental. Here are a few helpful rental and leasing articles from our experts to guide you on your search.

Articles, How-To's, and Tips

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Exploring Rental Options: Apartments, Townhomes, and Lofts - Oh My!

Written by: Robin Stewart

Where do you see yourself? When you think of home, sweet home, are you in a 3/2 apartment? Dreaming of a tall townhome? Maybe an industrial loft heavy on cool vibes is on your visioning board.

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Practical Tips for Renters: How to Identify a Great Rental and Avoid Red Flags

Written by: Robin Stewart

Renters want to find a great apartment, the right place for them, one that checks all the boxes of location, rental cost, amenities, safety, and more.

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First Apartment Regrets: Real Renters Share What They'd Do Differently

Written by: Robin Stewart

Hindsight is 20/20. Live and Learn. With age comes wisdom. We’re familiar with all those expressions, and all of them apply to lessons first-time renters learn.

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Renters Insurance 101: What It Is, What It Covers, and Why You Need It

Written by: Robin Stewart

Insurance seems to be a part of life. In some states, having insurance is the law, as is the case for automobile insurance. Renters are no exception.