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Co-ops in Islip, NY
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3 beds
24 listings
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New construction
With a pool

Co-ops in Islip, NY

Co-ops in Islip, NY

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24 Listings
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Co-ops in Islip, NY

24 Listings

Your local brokerage

TO

Thomas O'Leary

Realty.com

Lic. #10311208632

Call Thomas
  1. 3113 Wilshire 3113 — photoNew20Active

    $259,999

    1 bd · 1 ba · 600 sqft

    3113 Wilshire 3113, Islip, NY

    Dawn DeGirolamo · Douglas Elliman Real Estate

  2. 2449 Union Boulevard 21a — photo16Active

    $239,990

    1 bd · 1 ba · 850 sqft

    2449 Union Boulevard 21a, Islip, NY

    Michael J. Watts · Michael J Watts & Assoc Inc

  3. 97 Cardinal Lane 1B — photo16Active

    $395,000

    2 bd · 1 ba · 864 sqft

    97 Cardinal Lane 1B, Islip, NY

    Peter Ancona · Howard Hanna Coach

  4. 3909 Wilshire Lane 3909 — photo14Active

    $355,000

    1 bd · 1 ba · 950 sqft

    3909 Wilshire Lane 3909, Islip, NY

    Lisa F. Hendrickson · Douglas Elliman Real Estate

  5. 2453 Union Boulevard 39B — photo17Active

    $279,999

    2 bd · 1 ba · 900 sqft

    2453 Union Boulevard 39B, Islip, NY

    Christine Hodulick · Coldwell Banker American Homes

  6. 157 Newbrook Lane 157 — photo10Active

    $305,000

    1 bd · 1 ba · 0 sqft

    157 Newbrook Lane 157, Islip, NY

    Jack Ramsay · Eric G Ramsay Jr Assoc LLC

  7. 5218 Wilshire Lane 5218 — photo17Active

    $429,000

    2 bd · 1 ba · 1,100 sqft

    5218 Wilshire Lane 5218, Islip, NY

    Lisa F. Hendrickson · Douglas Elliman Real Estate

  8. 251 Village Drive 251 — photo17Active

    $379,000

    1 bd · 1 ba · 900 sqft

    251 Village Drive 251, Islip, NY

    Michael Marcaccio SRES · Integrity Core Realty

  9. 20 Laurel Avenue 60 — photoPrice Reduced16Active

    $435,000

    2 bd · 2 ba · 1,345 sqft

    20 Laurel Avenue 60, Islip, NY

    Matthew Hart · World Prop Intl Sea to Sky

  10. 99 Newbrook Lane 99 — photo9Active

    $319,999

    2 bd · 1 ba · 810 sqft

    99 Newbrook Lane 99, Islip, NY

    Jack Ramsay · Eric G Ramsay Jr Assoc LLC

  11. 2453 Union 20B — photo17Active

    $239,999

    2 bd · 1 ba · 940 sqft

    2453 Union 20B, Islip, NY

    Michelle Bechhoff · Douglas Elliman Real Estate

  12. 2397 Union Boulevard 7a — photo13Active

    $260,000

    1 bd · 1 ba · 850 sqft

    2397 Union Boulevard 7a, Islip, NY

    Nicole A. Calandro · Cornerstone Properties of LI

  13. 66 Pinebrook Place 66 — photoPrice Reduced32Active

    $259,900

    1 bd · 1 ba · 782 sqft

    66 Pinebrook Place 66, Islip, NY

    Diane Salvesen · Charles Rutenberg Realty Inc

  14. 112 Cardinal Lane 2a — photo14Active

    $149,900

    1 bd · 1 ba · 500 sqft

    112 Cardinal Lane 2a, Islip, NY

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

  15. 2435 Union Boulevard 7B — photo27Active

    $219,999

    1 bd · 1 ba · 800 sqft

    2435 Union Boulevard 7B, Islip, NY

    Donna G. Serwan · Century 21 AA Realty

  16. 338 Lakeland Avenue 6 E — photoPrice Reduced20Active

    $329,000

    1 bd · 1 ba · 900 sqft

    338 Lakeland Avenue 6 E, Islip, NY

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

  17. 2449F Union Boulevard 9B — photo19Active

    $284,999

    2 bd · 1 ba · 938 sqft

    2449F Union Boulevard 9B, Islip, NY

    Nicole Schwartz · RE/MAX Team

  18. 3922 Wilshire Lane H — photo9Active

    $339,000

    1 bd · 1 ba · 949 sqft

    3922 Wilshire Lane H, Islip, NY

    Patrick A. Mallilo · Leesa Byrnes Realty Inc

  19. 2453 D Union Boulevard 4a — photoPrice Reduced19Active

    $255,000

    2 bd · 1 ba · 750 sqft

    2453 D Union Boulevard 4a, Islip, NY

    Roman Davydov · Exit Realty First Choice

  20. 2453 Union Boulevard 24a — photoPrice Reduced17Active

    $225,000

    1 bd · 1 ba · 600 sqft

    2453 Union Boulevard 24a, Islip, NY

    Miles Pollak · Migrate Realty LLC

  21. 2397 Union Boulevard 8a — photoPrice Reduced27Active

    $250,000

    2 bd · 1 ba · 925 sqft

    2397 Union Boulevard 8a, Islip, NY

    Miles Pollak · Migrate Realty LLC

  22. 2449F Union Boulevard 12B — photo16Active

    $239,000

    1 bd · 1 ba · 617 sqft

    2449F Union Boulevard 12B, Islip, NY

    Angela Testa · Signature Premier Properties

  23. 2453D Union Boulevard 2a — photo18Active

    $227,000

    1 bd · 1 ba · 825 sqft

    2453D Union Boulevard 2a, Islip, NY

    Steve Lazo · Real Broker NY LLC

  24. 2449 Union Boulevard 24a — photoPrice Reduced16Active

    $189,000

    1 bd · 1 ba · 600 sqft

    2449 Union Boulevard 24a, Islip, NY

    Suzanne Venus · Signature Premier Properties

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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
    • New construction
    • With a pool

    Your local brokerage

    TO

    Thomas O'Leary

    Realty.com

    Lic. #10311208632

    Call Thomas

    Islip, NY community profile

    Area
    5.1 sq. mi.

    Source: HJN community data

    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.