- 3 bd
- 4 ba
- 3,500 sqft

The average Water Mill, NY home value is $4,836,776, up 8.5% over the past year. (Updated on )
Zillow Home Value Index (ZHVI), built from the ground up by measuring monthly changes in property level Zestimates, captures both the level and home values across a wide variety of geographies and housing types.
Typical Home Values: $4,836,776
1-Year Value Change: +8.5%
(Data through September 30, 2026)
Zillow is more than a place to browse homes. It’s a place to connect with a local agent, explore financing solutions, schedule home tours, understand your buying and selling power, and more.
The median home value in Water Mill, NY is $4,836,776 as of September 2026. This represents a 0.8% increase compared to last month and a 8.5% increase year-over-year.
Home values in Water Mill, NY have increased by 0.8% month-over-month and 8.5% year-over-year.
The median home value in Water Mill, NY ($4,836,776) compares to: Suffolk County ($729,701), New York ($524,942), and the U.S. national median ($366,157).