Market report · August 2026
Islandia housing market report
Suffolk County · Data as of October 2, 2026 · Based on OneKey® MLS · Updated monthly
12-month median price up 5.6%; seller's market
Market temperature · months of supply
2.5 months · seller's market
Median sale price
$660K
Last year $638K · +3.5%
Closed sales
3
Last year 2 · +50.0%
Homes for sale
4
Last year 0
Avg. days on market
97 days
Last year 128 days
% of original list
101.5%
Last year 94.4%
New listings
3
Last year 1 · +200.0%
Month and last 12 months
| Metric | August 2025 | August 2026 | Change | Thru 08/2025 | Thru 08/2026 | Change |
|---|---|---|---|---|---|---|
| New listings | 1 | 3 | +200.0% | 22 | 25 | +13.6% |
| Closed sales | 2 | 3 | +50.0% | 18 | 19 | +5.6% |
| Avg. days on market | 128 | 97 | −24.2% | 62 | 47 | −24.2% |
| Median sale price | $637,500 | $660,000 | +3.5% | $620,000 | $655,000 | +5.6% |
| % of original list | 94.4% | 101.5% | +7.5% | 100.5% | 102.2% | +1.7% |
| Homes for sale / Avg. homes for sale | 0 | 4 | — | 3 | 4 | +33.3% |
From 2013-01 to 2026-08, the rolling 12-month median moved from $240K to $655K.
Highlights
- 10-year median +174.3%
- 63% sold above original list in 12 months
For sale today
Islandia Single-family 6 homes
12-month median price down 6.1%; inventory down 100.0%; seller's market
Market temperature · months of supply
0 months · seller's market
Median sale price
$360K
Last year $685K · −47.4%
Closed sales
1
Last year 1 · 0.0%
Homes for sale
0
Last year 1 · −100.0%
Avg. days on market
49 days
Last year 193 days
% of original list
90.0%
Last year 100.0%
New listings
0
Last year 1 · −100.0%
Month and last 12 months
| Metric | August 2025 | August 2026 | Change | Thru 08/2025 | Thru 08/2026 | Change |
|---|---|---|---|---|---|---|
| New listings | 1 | 0 | −100.0% | 22 | 8 | −63.6% |
| Closed sales | 1 | 1 | 0.0% | 13 | 28 | +115.4% |
| Avg. days on market | 193 | 49 | −74.6% | 128 | 61 | −52.3% |
| Median sale price | $685,000 | $360,000 | −47.4% | $675,000 | $634,000 | −6.1% |
| % of original list | 100.0% | 90.0% | −10.0% | 100.2% | 100.7% | +0.5% |
| Homes for sale / Avg. homes for sale | 1 | 0 | −100.0% | 3 | 1 | −66.7% |
From 2013-01 to 2026-08, the rolling 12-month median moved from $238K to $634K.
Highlights
- 36% sold above original list in 12 months
- $500K–$750K is the busiest band · 86% of sales
For sale today
Islandia Condo 0 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.