Unshakable ZIP Data 11791 | Syosset, NY Housing Market
Syosset · Nassau County · New York-Newark-Jersey City, NY-NJ-PA metro · New York · Data updated June 19, 2026
The median sale price in ZIP 11791, Syosset, New York is $1,339,602 at $566 per square foot. 36 single-family homes sold in the latest period, down 21.7 percent from a year earlier. Homes sit a median of 36 days on market with 5.9 months of supply. Sellers are getting 99.6 percent of list price and 42.9 percent of homes sold above asking.
Balanced market.
Value anchors
| Metric | Value | Year over year |
|---|---|---|
| Average single-family value | $1,207,252 | |
| Average price per sq ft | $510 | |
| Median sale price | $1,339,602 | |
| Median sale price per sq ft | $566 | |
| Median home size | 2,367 sq ft | |
| Median new listing price | $1,338,359 | +11.5% |
| National size rank | 4,540 |
Sales activity
| Metric | Value | Year over year |
|---|---|---|
| Homes sold | 36 | -21.7% |
| Median days on market | 36 days | |
| Months of supply | 5.9 months | |
| New listings | 124 | +9.6% |
| Active listings | 153 | +4.8% |
| Pending sales | 78 | +13.1% |
Pricing power
| Metric | Value | Year over year |
|---|---|---|
| Average sale-to-list ratio | 99.6% | +1.1 pts |
| Share sold above list | 42.9% | +5.9 pts |
Bedroom value anchors
Average values by bedroom count. Value anchors for orientation, not appraisals.
3-bedroom
$1,047,767
4-bedroom
$1,272,179
5-bedroom
$2,012,674
These figures describe the single-family market for Syosset, New York ZIP 11791. They are market context, not a substitute for sold comps or a formal appraisal.