Housing in Islip, NY
Home values, rent, ownership rates, and housing market data
Housing Market Snapshot
Source: Redfin — January 2026Median Sale Price
$623,500
Median List Price
$545,000
Price Per Sq Ft
$334
Days on Market
22
Active Inventory
34
Months of Supply
2.8
Seller's market
Zillow Home Value
$641,215
ZHVI — January 2026
Price Trends
Source: RedfinMarket Competitiveness
Source: RedfinSold Above List
50.0%
Off Market in 2 Weeks
0.0%
Sale-to-List Ratio
102.6%
Seller's market
Market Activity
Source: RedfinHomes Sold
12
New Listings
10
Pending Sales
8
Price Per Square Foot
Source: RedfinMedian Sale $/SF
$334
Median List $/SF
$356
Islip vs Similar Cities
Source: Census ACS / Redfin (2023)Compared to cities with 10,000 - 25,000 residents. Islip is highlighted.
Median Home Value
Median Rent
Median Price Per Sq Ft
Rent Burden
Census Housing Data
Source: U.S. Census Bureau ACS (2023)Median Home Value
$486,900
Median Rent
$2,192
Total Housing Units
6,373
Vacancy Rate
4.4%
Owner Occupied
84.5%
Renter Occupied
15.5%
Median Property Tax
$10,001
per year
Monthly Cost (w/ Mortgage)
$2,511
Housing Types
The current median sale price in Islip, NY is $623,500 according to Redfin data. Homes spend a median of 22 days on the market. 50.0% of homes sold above asking price. The market has 2.8 months of supply. The median price per square foot is $334. The median rent is $2,192 per month (Census ACS). About 84.5% of housing units are owner-occupied. The median year homes were built is 1965. There are 6,373 total housing units.