Market report · August 2026
Islip Terrace housing market report
Suffolk County · Data as of October 2, 2026 · Based on OneKey® MLS · Updated monthly
12-month median price up 3.1%; inventory down 33.3%; seller's market
Market temperature · months of supply
1.1 months · seller's market
Median sale price
$783K
Last year $658K · +19.0%
Closed sales
4
Last year 6 · −33.3%
Homes for sale
6
Last year 9 · −33.3%
Avg. days on market
21 days
Last year 18 days
% of original list
106.4%
Last year 106.8%
New listings
4
Last year 5 · −20.0%
Month and last 12 months
| Metric | August 2025 | August 2026 | Change | Thru 08/2025 | Thru 08/2026 | Change |
|---|---|---|---|---|---|---|
| New listings | 5 | 4 | −20.0% | 61 | 76 | +24.6% |
| Closed sales | 6 | 4 | −33.3% | 54 | 66 | +22.2% |
| Avg. days on market | 18 | 21 | +16.7% | 23 | 29 | +26.1% |
| Median sale price | $657,500 | $782,500 | +19.0% | $640,000 | $660,000 | +3.1% |
| % of original list | 106.8% | 106.4% | −0.4% | 105.1% | 103.2% | −1.8% |
| Homes for sale / Avg. homes for sale | 9 | 6 | −33.3% | 5 | 7 | +40.0% |
From 2013-01 to 2026-08, the rolling 12-month median moved from $305K to $660K.
Highlights
- 10-year median +106.5%
- 70% sold above original list in 12 months
- $500K–$750K is the busiest band · 73% of sales
For sale today
Islip Terrace Single-family 6 homes
Curious what your home is worth?
Source: OneKey® MLS, calculated by Homix following OneKey's market report method; figures may differ slightly from OneKey's own reports. Prices do not account for concessions or down-payment assistance; small samples can make percent changes look extreme.