Market report · August 2026
Middle Island housing market report
Suffolk County · Data as of October 2, 2026 · Based on OneKey® MLS · Updated monthly
12-month median price up 8.3%; inventory down 30.0%; seller's market
Market temperature · months of supply
2.7 months · seller's market
Median sale price
$632K
Last year $575K · +9.9%
Closed sales
9
Last year 9 · 0.0%
Homes for sale
21
Last year 30 · −30.0%
Avg. days on market
49 days
Last year 27 days
% of original list
102.9%
Last year 104.5%
New listings
12
Last year 14 · −14.3%
Month and last 12 months
| Metric | August 2025 | August 2026 | Change | Thru 08/2025 | Thru 08/2026 | Change |
|---|---|---|---|---|---|---|
| New listings | 14 | 12 | −14.3% | 114 | 122 | +7.0% |
| Closed sales | 9 | 9 | 0.0% | 79 | 93 | +17.7% |
| Avg. days on market | 27 | 49 | +81.5% | 46 | 43 | −6.5% |
| Median sale price | $575,000 | $632,000 | +9.9% | $540,000 | $585,000 | +8.3% |
| % of original list | 104.5% | 102.9% | −1.5% | 101.2% | 101.5% | +0.3% |
| Homes for sale / Avg. homes for sale | 30 | 21 | −30.0% | 18 | 20 | +11.1% |
From 2013-01 to 2026-08, the rolling 12-month median moved from $220K to $585K.
Highlights
- 10-year median +134.0%
- 63% sold above original list in 12 months
- $500K–$750K is the busiest band · 62% of sales
For sale today
Middle Island Single-family 24 homes
12-month median price up 3.4%; inventory up 22.2%; seller's market
Market temperature · months of supply
2.8 months · seller's market
Median sale price
$349K
Last year $385K · −9.4%
Closed sales
7
Last year 15 · −53.3%
Homes for sale
22
Last year 18 · +22.2%
Avg. days on market
21 days
Last year 41 days
% of original list
97.9%
Last year 99.5%
New listings
12
Last year 14 · −14.3%
Month and last 12 months
| Metric | August 2025 | August 2026 | Change | Thru 08/2025 | Thru 08/2026 | Change |
|---|---|---|---|---|---|---|
| New listings | 14 | 12 | −14.3% | 136 | 108 | −20.6% |
| Closed sales | 15 | 7 | −53.3% | 107 | 96 | −10.3% |
| Avg. days on market | 41 | 21 | −48.8% | 53 | 42 | −20.8% |
| Median sale price | $385,000 | $349,000 | −9.4% | $374,250 | $387,000 | +3.4% |
| % of original list | 99.5% | 97.9% | −1.6% | 99.7% | 99.3% | −0.4% |
| Homes for sale / Avg. homes for sale | 18 | 22 | +22.2% | 21 | 14 | −33.3% |
From 2013-01 to 2026-08, the rolling 12-month median moved from $135K to $387K.
Highlights
- 10-year median +111.5%
- 43% sold above original list in 12 months
- $250K–$500K is the busiest band · 71% of sales
For sale today
Middle Island Condo 24 homes
12-month median price down 14.2%; inventory down 20.0%; seller's market
Market temperature · months of supply
3.1 months · seller's market
Median sale price
$200K
Last year $203K · −1.5%
Closed sales
3
Last year 5 · −40.0%
Homes for sale
8
Last year 10 · −20.0%
Avg. days on market
61 days
Last year 61 days
% of original list
97.6%
Last year 100.9%
New listings
1
Last year 3 · −66.7%
Month and last 12 months
| Metric | August 2025 | August 2026 | Change | Thru 08/2025 | Thru 08/2026 | Change |
|---|---|---|---|---|---|---|
| New listings | 3 | 1 | −66.7% | 29 | 38 | +31.0% |
| Closed sales | 5 | 3 | −40.0% | 24 | 31 | +29.2% |
| Avg. days on market | 61 | 61 | 0.0% | 60 | 58 | −3.3% |
| Median sale price | $203,000 | $199,999 | −1.5% | $239,000 | $205,000 | −14.2% |
| % of original list | 100.9% | 97.6% | −3.3% | 99.7% | 96.9% | −2.8% |
| Homes for sale / Avg. homes for sale | 10 | 8 | −20.0% | 5 | 7 | +40.0% |
From 2013-01 to 2026-08, the rolling 12-month median moved from $60K to $205K.
Highlights
- 10-year median +141.2%
- 32% sold above original list in 12 months
- $0–$250K is the busiest band · 61% of sales
For sale today
Middle Island Co-op 4 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.