Data as of July 2026. Source: Realtor.com.
The ISLANDIA, NY real estate market (11749) currently shows 9 active listings, with 5 pending sales. Homes are averaging 46 days on the market before going under contract.
Inventory has tightened compared to last year, with 23 fewer active listings — creating more competition among buyers.
The median listing price has fallen 25.6% year-over-year, from $674,000 to $501,650.
Whether you are buying or selling in ISLANDIA, NY, SELL123.com can help you save significantly on commission — typically 2% compared to traditional 5% broker fees. Call (240) SELL-123 for a free consultation.
Population: 3,568 · Density: 630.0/mi² · Median household income: $109,964
Typical home value: $420,870 · Homeownership: 96.8%
| Zip | City / State | Distance | Listings | Market Value | Median $ | Average $ |
|---|---|---|---|---|---|---|
| 11749 | Islandia, NY 11749 | 0.0 mi | 14 | $8,769,250 | $669,250 | $626,375 |
| 11788 | Hauppauge, NY 11788 | 2.4 mi | 25 | $22,435,750 | $821,168 | $897,430 |
| 11767 | Nesconset, NY 11767 | 2.9 mi | 29 | $22,898,110 | $795,924 | $789,590 |
| 11752 | Islip Terrace, NY 11752 | 3.4 mi | 10 | $6,994,000 | $652,447 | $699,400 |
| 11755 | Lake Grove, NY 11755 | 4.5 mi | 29 | $26,744,728 | $837,499 | $922,232 |
| 11769 | Oakdale, NY 11769 | 5.3 mi | 18 | $14,123,808 | $819,500 | $784,656 |
| 11730 | East Islip, NY 11730 | 5.6 mi | 19 | $17,498,658 | $917,000 | $920,982 |
| 11780 | Saint James, NY 11780 | 5.9 mi | 40 | $65,196,640 | $1,099,000 | $1,629,916 |
| 11720 | Centereach, NY 11720 | 6.4 mi | 61 | $43,059,778 | $687,931 | $705,898 |
| 11739 | Great River, NY 11739 | 6.7 mi | 5 | $6,842,500 | $1,368,500 | $1,368,500 |
| 11782 | Sayville, NY 11782 | 6.7 mi | 37 | $51,490,532 | $1,285,000 | $1,391,636 |
| 11738 | Farmingville, NY 11738 | 7.3 mi | 26 | $17,802,746 | $578,725 | $684,721 |
| 11705 | Bayport, NY 11705 | 7.4 mi | 10 | $8,954,280 | $687,500 | $895,428 |
As of July 2026, there are 9 active listings in ISLANDIA, NY (zip code 11749), compared to 32 the prior year.
The median listing price in ISLANDIA, NY 11749 is $501,650 as of July 2026, a 25.6% decrease from $674,000 the prior year.
Homes in ISLANDIA, NY 11749 spend an average of 46 days on the market before going under contract, compared to 46 days the prior year.
Based on current inventory and days-on-market data as of July 2026, ISLANDIA, NY 11749 is currently a Balanced Market. Inventory has tightened compared to last year, with 23 fewer active listings — creating more competition among buyers.
With SELL123.com's maximum 3% commission, sellers in ISLANDIA, NY 11749 save an estimated $10,033 compared to a typical 5% commission on the median listing price of $501,650. Our fee structure: 1% listing + 2% selling broker — no additional buyer or seller fees. Call (240) SELL-123 or email info@SELL123.com for a free consultation.