Active Listings
42
⇩ 6.7% vs 45 last year
Data as of September 2026. Source: Realtor.com.
The Stony Brook, NY real estate market currently shows 42 active listings, with 23 pending sales. Homes are averaging 37 days on the market before going under contract.
Inventory has tightened compared to last year, with 3 fewer active listings — creating more competition among buyers.
Homes are selling faster, averaging 37 days on market compared to 39 days last year.
The median listing price has fallen 1% year-over-year, from $789,450 to $781,250.
Population: 20,707 · Density: 1,116.2/mi² · Median household income: $135,529
Typical home value: $536,383 · Homeownership: 83.1%