Unshakable ZIP Data 11558 | Island Park, NY Housing Market
Island Park · Nassau County · New York-Newark-Jersey City, NY-NJ-PA metro · New York · Data updated June 19, 2026
The median sale price in ZIP 11558, Island Park, New York is $739,780 at $418 per square foot. 18 single-family homes sold in the latest period, up 59.1 percent from a year earlier. Homes sit a median of 76 days on market with 2.8 months of supply. Sellers are getting 97.4 percent of list price and 23.5 percent of homes sold above asking.
Buyer leverage market. Negotiate hard.
Value anchors
| Metric | Value | Year over year |
|---|---|---|
| Average single-family value | $754,669 | |
| Average price per sq ft | $426 | |
| Median sale price | $739,780 | |
| Median sale price per sq ft | $418 | |
| Median home size | 1,772 sq ft | |
| Median new listing price | $841,804 | +14.2% |
| National size rank | 11,198 |
Sales activity
| Metric | Value | Year over year |
|---|---|---|
| Homes sold | 18 | +59.1% |
| Median days on market | 76 days | |
| Months of supply | 2.8 months | |
| New listings | 17 | -42.5% |
| Active listings | 34 | -25.1% |
| Pending sales | 17 | +1.4% |
Pricing power
| Metric | Value | Year over year |
|---|---|---|
| Average sale-to-list ratio | 97.4% | -0.8 pts |
| Share sold above list | 23.5% | -3.7 pts |
Bedroom value anchors
Average values by bedroom count. Value anchors for orientation, not appraisals.
2-bedroom
$616,449
3-bedroom
$750,738
4-bedroom
$812,053
These figures describe the single-family market for Island Park, New York ZIP 11558. They are market context, not a substitute for sold comps or a formal appraisal.