Market report · August 2026
Port Jefferson housing market report
Suffolk County · Data as of October 2, 2026 · Based on OneKey® MLS · Updated monthly
12-month median price up 13.2%; inventory down 8.3%; seller's market
Market temperature · months of supply
3.1 months · seller's market
Median sale price
$758K
Last year $775K · −2.3%
Closed sales
6
Last year 5 · +20.0%
Homes for sale
22
Last year 24 · −8.3%
Avg. days on market
35 days
Last year 153 days
% of original list
97.3%
Last year 92.1%
New listings
9
Last year 11 · −18.2%
Month and last 12 months
| Metric | August 2025 | August 2026 | Change | Thru 08/2025 | Thru 08/2026 | Change |
|---|---|---|---|---|---|---|
| New listings | 11 | 9 | −18.2% | 121 | 116 | −4.1% |
| Closed sales | 5 | 6 | +20.0% | 66 | 86 | +30.3% |
| Avg. days on market | 153 | 35 | −77.1% | 61 | 58 | −4.9% |
| Median sale price | $775,000 | $757,500 | −2.3% | $722,750 | $818,000 | +13.2% |
| % of original list | 92.1% | 97.3% | +5.6% | 97.5% | 97.3% | −0.2% |
| Homes for sale / Avg. homes for sale | 24 | 22 | −8.3% | 23 | 19 | −17.4% |
From 2013-01 to 2026-08, the rolling 12-month median moved from $430K to $818K.
Highlights
- 10-year median +81.4%
- 41% sold above original list in 12 months
- $750K–$1M is the busiest band · 47% of sales
For sale today
Port Jefferson Single-family 34 homes
12-month median price down 10.4%; inventory up 500.0%; balanced market
Market temperature · months of supply
4.5 months · balanced market
Median sale price
$620K
Last year $610K · +1.6%
Closed sales
2
Last year 1 · +100.0%
Homes for sale
6
Last year 1 · +500.0%
Avg. days on market
21 days
Last year 19 days
% of original list
99.6%
Last year 101.8%
New listings
5
Last year 1 · +400.0%
Month and last 12 months
| Metric | August 2025 | August 2026 | Change | Thru 08/2025 | Thru 08/2026 | Change |
|---|---|---|---|---|---|---|
| New listings | 1 | 5 | +400.0% | 16 | 30 | +87.5% |
| Closed sales | 1 | 2 | +100.0% | 16 | 16 | 0.0% |
| Avg. days on market | 19 | 21 | +10.5% | 29 | 35 | +20.7% |
| Median sale price | $610,000 | $620,000 | +1.6% | $597,500 | $535,500 | −10.4% |
| % of original list | 101.8% | 99.6% | −2.2% | 99.2% | 98.1% | −1.1% |
| Homes for sale / Avg. homes for sale | 1 | 6 | +500.0% | 2 | 3 | +50.0% |
From 2013-01 to 2026-08, the rolling 12-month median moved from $293K to $536K.
Highlights
- 10-year median +77.0%
- 31% sold above original list in 12 months
For sale today
Port Jefferson Condo 5 homes
Buyer's market
Market temperature · months of supply
12 months · buyer's market
Median sale price
—
Last year —
Closed sales
0
Last year 0
Homes for sale
1
Last year 0
Avg. days on market
—
Last year —
% of original list
—
Last year —
New listings
0
Last year 0
Month and last 12 months
| Metric | August 2025 | August 2026 | Change | Thru 08/2025 | Thru 08/2026 | Change |
|---|---|---|---|---|---|---|
| New listings | 0 | 0 | — | 1 | 2 | +100.0% |
| Closed sales | 0 | 0 | — | 0 | 1 | — |
| Avg. days on market | — | — | — | — | 11 | — |
| Median sale price | — | — | — | — | $295,000 | — |
| % of original list | — | — | — | — | 102.1% | — |
| Homes for sale / Avg. homes for sale | 0 | 1 | — | 0 | 0 | — |
From 2017-04 to 2026-08, the rolling 12-month median moved from $113K to $295K.
For sale today
Port Jefferson Co-op 1 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.