
Water Mill has 2,764 Census residents, 50% of its homes are seasonal, and only 80 households rent. The Census median gross rent, $3,200, is one of the highest in the table, but it describes a small group. It is in the Town of Southampton. To see what is listed now, open Water Mill rentals on Hamptons Key.
Renting here
Median household income is $186,875 and the median home value is $2,000,000 or more, the top code. Because renters are only 6% of households, expect a few listings rather than a market. The Town of Southampton’s rental permit rules apply to properties under Town jurisdiction; see rental permits. Compare with rents by hamlet.
Schools
School district lines do not follow hamlet lines, and Water Mill is one place where you should confirm by address. The Southampton Union Free School District runs a transportation facility at 136 Old Mill Road in Water Mill, and its district page lists the proofs a tenant can show. See the district page and Bridgehampton’s, the neighboring district.
Healthcare and services
Stony Brook Southampton Hospital, in Southampton village, runs a 24/7 emergency department; see the hospital page. The Parrish Art Museum at 279 Montauk Highway keeps its museum open Thursday through Monday, 11 a.m. to 5 p.m., and its grounds open daily, per its website in October 2026. Trash is the Town’s pay-per-bag system; see green bags and recycling centers.
Heat, power and internet
Utility gas serves 28% of households here, oil 43% and electricity 16%. The Census puts work-from-home at 38%. See the heating guide.
Winter
The Bridgehampton normals are the closest long record: a January low of 23° and 8.6 inches of snow in February. With half of homes seasonal, plan for a quiet road; read the first winter checklist.
Elsewhere in the network
- Where to eat, with winter hours: Water Mill on Eat Hamptons.
- Getting here and getting around: Water Mill on Hamptons Commute.
- Beach permits and parking rules: Water Mill on Hamptons Beach Pass.
Questions people ask
What does it cost to rent in Water Mill?
The Census median gross rent is $3,200, based on 80 renter households, so treat it as a rough guide.
Which school district is Water Mill in?
School district lines do not follow hamlet lines. Southampton Union Free School District runs a facility on Old Mill Road in Water Mill, but confirm any address with the district.
Sources
- Parrish Art Museum, Visit
- Southampton UFSD, Proof of District Residency
- Town of Southampton, Disposal of Garbage, Recyclables & Green Bags
- U.S. Census Bureau, ACS 2020-2024 5‑year estimates
- NOAA NCEI, U.S. Climate Normals 1991-2020
Checked October 2026. Rules, fees and hours change; confirm with the office or operator before you act.