Co-ops in Islip, NY

Active
$329,999
1 bd · 1 ba · 950 sqft
3221 Wilshire Lane 21E, Islip, NY
Nicole Adams · OverSouth LLC

Your local brokerage

Thomas O'Leary

Realty.com

Lic. #10311208632

NewActive

$235,000

1 bd · 1 ba · 791 sqft

2439 Union Boulevard 3a, Islip, NY

Kerri Passamenti · BH&G R E Realty Connect

$259,999

1 bd · 1 ba · 600 sqft

3113 Wilshire 3113, Islip, NY

Dawn DeGirolamo · Douglas Elliman Real Estate

Your local brokerage

Thomas O'Leary

Realty.com

Lic. #10311208632

$239,990

1 bd · 1 ba · 850 sqft

2449 Union Boulevard 21a, Islip, NY

Michael J. Watts · Michael J Watts & Assoc Inc

$355,000

1 bd · 1 ba · 950 sqft

3909 Wilshire Lane 3909, Islip, NY

Lisa F. Hendrickson · Douglas Elliman Real Estate

$395,000

2 bd · 1 ba · 864 sqft

97 Cardinal Lane 1B, Islip, NY

Peter Ancona · Howard Hanna Coach

$279,999

2 bd · 1 ba · 900 sqft

2453 Union Boulevard 39B, Islip, NY

Christine Hodulick · Coldwell Banker American Homes

$305,000

1 bd · 1 ba · 0 sqft

157 Newbrook Lane 157, Islip, NY

Jack Ramsay · Eric G Ramsay Jr Assoc LLC

$429,000

2 bd · 1 ba · 1,100 sqft

5218 Wilshire Lane 5218, Islip, NY

Lisa F. Hendrickson · Douglas Elliman Real Estate

$379,000

1 bd · 1 ba · 900 sqft

251 Village Drive 251, Islip, NY

Michael Marcaccio SRES · Integrity Core Realty

$430,000

2 bd · 2 ba · 1,345 sqft

20 Laurel Avenue 60, Islip, NY

Matthew Hart · World Prop Intl Sea to Sky

9Active

$319,999

2 bd · 1 ba · 810 sqft

99 Newbrook Lane 99, Islip, NY

Jack Ramsay · Eric G Ramsay Jr Assoc LLC

$239,999

2 bd · 1 ba · 940 sqft

2453 Union 20B, Islip, NY

Michelle Bechhoff · Douglas Elliman Real Estate

13Active

$260,000

1 bd · 1 ba · 850 sqft

2397 Union Boulevard 7a, Islip, NY

Nicole A. Calandro · Cornerstone Properties of LI

$259,900

1 bd · 1 ba · 782 sqft

66 Pinebrook Place 66, Islip, NY

Diane Salvesen · Charles Rutenberg Realty Inc

$149,900

1 bd · 1 ba · 500 sqft

112 Cardinal Lane 2a, Islip, NY

Richard R. Krug PSA SRES SFR · Coldwell Banker American Homes

$219,999

1 bd · 1 ba · 800 sqft

2435 Union Boulevard 7B, Islip, NY

Donna G. Serwan · Century 21 AA Realty

$329,000

1 bd · 1 ba · 900 sqft

338 Lakeland Avenue 6 E, Islip, NY

Cathi M. Durler · BH&G R E Realty Connect

$284,999

2 bd · 1 ba · 938 sqft

2449F Union Boulevard 9B, Islip, NY

Nicole Schwartz · RE/MAX Team

$339,000

1 bd · 1 ba · 949 sqft

3922 Wilshire Lane H, Islip, NY

Patrick A. Mallilo · Leesa Byrnes Realty Inc

$255,000

2 bd · 1 ba · 750 sqft

2453 D Union Boulevard 4a, Islip, NY

Roman Davydov · Exit Realty First Choice

Price Reduced17Active

$225,000

1 bd · 1 ba · 600 sqft

2453 Union Boulevard 24a, Islip, NY

Miles Pollak · Migrate Realty LLC

$250,000

2 bd · 1 ba · 925 sqft

2397 Union Boulevard 8a, Islip, NY

Miles Pollak · Migrate Realty LLC

16Active

$239,000

1 bd · 1 ba · 617 sqft

2449F Union Boulevard 12B, Islip, NY

Angela Testa · Signature Premier Properties

Listing data & MLS disclosures

OneKey MLS: The data relating to real estate for sale on this website comes in part from the Internet Data exchange of OneKey MLS. IDX information is provided exclusively 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. Information deemed reliable but not guaranteed. Copyright © 2026 OneKey MLS. All Rights Reserved

Islip housing market

August 2026 · This period is still settling

Selling at 101.3% of asking price

Buyers here are paying above asking. MLS · 12 sales · as of Aug 31, 2026

Homes on the market · MLS, as of Aug 24, 2026–Aug 31, 2026

Median list price: $525,000
Homes for sale: 27
Median days on market: 15 days

Housing stock — every home in the area, not only the ones selling or listed · Assessor records, as of Aug 19, 2026

Median home size: 1,687 sq. ft.

Islip, NY community profile

Area: 5.1 sq. mi.

Source: HJN community data

Explore Islip homes

Your local brokerage

Thomas O'Leary

Realty.com

Lic. #10311208632