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Islandia, NY Real Estate & Property Data

Islandia Real Estate Market Trends

Last Updated: September 27, 2025

Accurate and comprehensive real estate data is critical for insight into Islandia, NY 11749. ATTOM’s Islandia real estate data is updated daily, and current market trends show that in Islandia, NY a total of 42 residential properties have sold over the past year. Get detailed property data for Islandia, NY instantly. ATTOM is your one-stop-shop for the Islandia property reports and real estate data you need in Islandia, NY.

Islandia Real Estate Market Trends

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Total Residential Properties 1,086

Total Commercial Properties 120

Avg. Home Age (Single Family Home) N/A

Avg. Square Feet (Single Family Home) N/A

Total 2025 Residential Sales (year-to-date) 25

% of Homes Seriously Underwater (Q3 2025) 0.1%

Total 2024 Residential Sales 50

% of Equity Rich Homes (Q3 2025) 42.76%

Effective 2024 Property Tax N/A

Total Foreclosure Filings (year-to-date) 3

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Islandia, NY 11749 Real Estate Overview

There were 42 residential properties sold in the past year in Islandia, NY 11749. The median home value in Islandia, NY 11749 is $583,950. There are a total of 1,086 residential properties in the 11749.

Median Sales Price i

July '25 Jul '25 N/A
June '25 Jun '25 $590,000
May '25 May '25 $520,000
April '25 Apr '25 N/A
March '25 Mar '25 $564,500
February '25 Feb '25 $677,750
January '25 Jan '25 $740,000
December '24 Dec '24 $560,000
November '24 Nov '24 $632,500
October '24 Oct '24 $602,500
September '24 Sep '24 $508,850
August '24 Aug '24 N/A

Median Down Payment i

July '25 Jul '25 N/A
June '25 Jun '25 $59,000
May '25 May '25 $32,380
April '25 Apr '25 N/A
March '25 Mar '25 $11,756
February '25 Feb '25 $41,406
January '25 Jan '25 $29,600
December '24 Dec '24 $56,000
November '24 Nov '24 $106,068
October '24 Oct '24 $60,112
September '24 Sep '24 $29,955
August '24 Aug '24 N/A

Number of Homes Sold i

July '25 Jul '25 N/A
June '25 Jun '25 5
May '25 May '25 8
April '25 Apr '25 3
March '25 Mar '25 5
February '25 Feb '25 3
January '25 Jan '25 1
December '24 Dec '24 3
November '24 Nov '24 3
October '24 Oct '24 3
September '24 Sep '24 6
August '24 Aug '24 1

Number of Purchase Loans i

1

(Jul 2025)

year-over-year

y-o-y

July '25 Jul '25 1
June '25 Jun '25 2
May '25 May '25 5
April '25 Apr '25 N/A
March '25 Mar '25 2
February '25 Feb '25 3
January '25 Jan '25 1
December '24 Dec '24 1
November '24 Nov '24 2
October '24 Oct '24 3
September '24 Sep '24 2
August '24 Aug '24 N/A

Number of REFI Loans i

2

(Jul 2025)

-33.3%

year-over-year

y-o-y

July '25 Jul '25 2
June '25 Jun '25 3
May '25 May '25 2
April '25 Apr '25 5
March '25 Mar '25 3
February '25 Feb '25 2
January '25 Jan '25 4
December '24 Dec '24 2
November '24 Nov '24 1
October '24 Oct '24 2
September '24 Sep '24 7
August '24 Aug '24 3

Number of HELOC Loans i

July '25 Jul '25 N/A
June '25 Jun '25 N/A
May '25 May '25 N/A
April '25 Apr '25 N/A
March '25 Mar '25 N/A
February '25 Feb '25 N/A
January '25 Jan '25 N/A
December '24 Dec '24 1
November '24 Nov '24 1
October '24 Oct '24 N/A
September '24 Sep '24 N/A
August '24 Aug '24 N/A

Islandia, NY 11749 Real Estate Market Overview

Last 30 days

Street
Street
Street

Islandia, NY 11749 Foreclosure Activity

There were a total of 1 Islandia, NY 11749 properties with a foreclosure filing in July 2025.

Total Foreclosure Filings i

1

(Jul 2025)

July '25 Jul '25 1
June '25 Jun '25 1
May '25 May '25 N/A
April '25 Apr '25 N/A
March '25 Mar '25 1
February '25 Feb '25 N/A
January '25 Jan '25 N/A
December '24 Dec '24 1
November '24 Nov '24 N/A
October '24 Oct '24 1
September '24 Sep '24 N/A
August '24 Aug '24 N/A

Foreclosure Starts i

July '25 Jul '25 N/A
June '25 Jun '25 1
May '25 May '25 N/A
April '25 Apr '25 N/A
March '25 Mar '25 1
February '25 Feb '25 N/A
January '25 Jan '25 N/A
December '24 Dec '24 1
November '24 Nov '24 N/A
October '24 Oct '24 1
September '24 Sep '24 N/A
August '24 Aug '24 N/A

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