3 Bedroom Apartments for Rent in Islandia, NY (25 Rentals)

How Many Bedrooms?Done
Select your price rangeDone
to
Lifestyle Matching SearchDone
Learn more about Lifestyle Search
By AmenitiesDone
By Community TypeDone
Features and AvailabilityDone
Done
close
View Me
1-9 Gilbert Ave
3 Bedroom Apartments

1-9 Gilbert Ave

1-9 Gilbert AveSmithtown, NY 11787
Showing Results 1-25, Page 1 of 1

Islandia, NY Local Guide

Largest Available Islandia and Nearby 3 Bedroom Apartments

The largest available 3 Bedroom apartment unit in Islandia, NY is found at Carlow in the Lake Ronkonkoma neighborhood and is 1,755 square feet priced from $5,925. Fairfield At Ronkonkoma in the Five Corners neighborhood has the second largest 3 Bedroom, which is sized at 1,618 square feet and currently listed start at $3,920. Here is today’s list of the largest available 3 Bedroom units in Islandia:

Apartment ListingModel NameSquare FootagePriced From
CarlowC21,755 Sq Ft$5,925
Fairfield At RonkonkomaThe Astor Place*1,618 Sq Ft$3,920
Alston at Station Yards3Bed/2Bath-C21,551 Sq Ft$5,311
Avalon CommonsC1R1,327 Sq Ft$4,030
Renaissance HillsC11,020 Sq Ft$3,783

Cheapest Available Islandia and Nearby 3 Bedroom Apartments

As of November 15, 2025 the lowest priced 3 Bedroom apartment unit in Islandia, NY is the C1 Model starting from $3,783 at Renaissance Hills in the Western Suffolk neighborhood. The second most affordable Islandia 3 Bedroom is the The Carnegie Model at Fairfield At Ronkonkoma starting at $3,815 in the Five Corners neighborhood. The average price for all 3 Bedroom apartments in Islandia is currently $4,308. Here is today’s list of the cheapest available 3 Bedroom options in Islandia:

Apartment ListingModel NamePriced From
Renaissance HillsC1$3,783
Fairfield At RonkonkomaThe Carnegie$3,815
Avalon CommonsC1R$4,030
Alston at Station Yards3Bed/2Bath-C3$5,300
CarlowC1$5,885

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.

decorative image of people with a giant lease agreement

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

Explore Islandia, NY Rentals by Map

Decorative image of map

See the most popular apartments and homes in Islandia, NY

View Map
Islandia, NY Apartments Map
View Map
Islandia, NY Rental Homes Map

Getting Around Islandia, NY

Walk Score®

42 / 100

Car-Dependent

Most errands require a car

Bike Score®

44 / 100

Somewhat Bikeable

Minimal bike infrastructure

What Are Walk Score®, Transit Score®, and Bike Score® Ratings?

  • Walk Score® measures the walkability of any address.
  • Transit Score® measures access to public transit.
  • Bike Score® measures the bikeability of any address.

Frequently Asked Questions about 3 Bedroom Islandia Apartments

What is the Cheapest apartment in Islandia with 3 Bedroom?

Currently the most affordable 3 Bedroom in Islandia is at Renaissance Hills listed at $3,783.

How much is the average rent for a 3 Bedroom Islandia Apartment?

The average rent for a 3 Bedroom Apartment in Islandia is $4,308.

What is the largest available 3 Bedroom Islandia Apartment for rent?

Today's apartment with the most square footage in Islandia is a 1,755 square feet unit starting from $5,925 at Carlow.

What is the average size for Islandia 3 Bedroom Apartments for rent?

The average size for a 3 Bedroom rental in Islandia is currently 1,148 sq ft.

Expert Rental Resources

Helpful Apartment Articles, How-To's and Tips

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.

decorative image for Apartment Common Area Rules: What Renters Need to Know article

Apartment Common Area Rules: What Renters Need to Know

Written by: Christine Leonard, Esq.

Back in the day when I rented one of my first apartments, the property didn’t even have laundry in the building. Now, rental properties are often competing against each other to provide the best amenities.

decorative image for How to Negotiate Your Apartment Lease and Save Money article

How to Negotiate Your Apartment Lease and Save Money

Written by: Christine Leonard, Esq.

Everything is a negotiation in real estate! 

decorative image for The Rental Move-In Inspection Checklist: A Guide for Renters article

The Rental Move-In Inspection Checklist: A Guide for Renters

Written by: Trey Huguley

The move-in inspection checklist is a crucial tool for both tenants and landlords. This checklist, provided by the team at ApartmentHomeLiving.com, helps document the condition of an apartment at the time of move-in.

decorative image for Your Guide to Co-Signers: The Risks, Rewards, and Everything in Between article

Your Guide to Co-Signers: The Risks, Rewards, and Everything in Between

Written by: Christine Leonard, Esq.

For many people, obstacles can arise during the rental application process for a variety of issues.