Water Mill CDP, New York Demographics & Population 2026

Population Overview

Water Mill CDP is a small community located in New York. The total population is 2,218. It ranks as the 586th most populous out of 1,287 cities and towns in New York.

Age Demographics

The median age in Water Mill CDP is 56.2 years. This is 42% higher than the state median of 39.6 years. Only 11.9% of residents are under 18, indicating fewer families with children. 14.6% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.

Economy, Income & Housing

The median household income in Water Mill CDP is $158,250. This is 87% higher than the state median of $84,578. Compared to the national median of $78,538, household income here is 101% higher. The poverty rate stands at 3.4%. This is 75% lower than the state poverty rate of 13.7%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The unemployment rate is 7.1%. This is 15% higher than the state rate of 6.2%. The median home value is $2,000,001. Housing costs are 396% higher than the state median of $403,000. The home-value-to-income ratio of 12.6x suggests that housing affordability is a significant concern for many residents. 91.2% of occupied housing units are owner-occupied. This homeownership rate is 68% higher than the state average of 54.3%.

Race & Ethnicity

Water Mill CDP has a predominantly White (non-Hispanic) population, comprising 86.4% of all residents. Hispanic or Latino residents account for 10.4%. The White (non-Hispanic) population is significantly higher than the state average (86.4% vs 53.4%). The Black or African American population (0.5%) is well below the state average of 13.6%. The Asian population (2.2%) is well below the state average of 8.8%.

Education

77.6% of residents aged 25 and older hold a bachelor's degree or higher. This places Water Mill CDP in the top 10% of all cities in the state for educational attainment. This is 96% higher than the state rate of 39.6%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 97.6%. Notably, 34.7% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for Water Mill CDP, New York is sourced from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates (2019-2023). The ACS collects data from approximately 3.5 million households annually, providing reliable estimates for communities of all sizes. Comparisons are made against New York state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,287 Census-designated places in New York. For official data, visit data.census.gov.