Water Mill, New York Population 2024

2,433

Water Mill is a CDP located in Suffolk County New York. Water Mill has a 2024 population of 2,433. Water Mill is currently growing at a rate of 2.66% annually and its population has increased by 30.81% since the most recent census, which recorded a population of 1,860 in 2020.

The average household income in Water Mill is $295,228 with a poverty rate of 6.98%. The median age in Water Mill is 54.9 years: 56.2 years for males, and 51.8 years for females.

Water Mill Demographics

According to the most recent ACS, the racial composition of Water Mill was:

  • White: 88.04%
  • Two or more races: 9.79%
  • Asian: 1.65%
  • Black or African American: 0.52%
  • Native American: 0%
  • Native Hawaiian or Pacific Islander: 0%
  • Other race: 0%
Land Area (mi²)
10.6 sq mi
Density (mi²)
230.0/sq mi
Growth Since 2020
30.81% (573)
The current population of Water Mill, New York is 2,433 based on our projections of the latest US Census estimates (released May 2024). The last official US Census in 2020 recorded the population at 1,860.

Population by Race

Race
Population
Percentage (of total)
White2,03288.04%
Two or more races2269.79%
Asian381.65%
Black or African American120.52%
Native American00%
Native Hawaiian or Pacific Islander00%
Other race00%

White

Two or more races

Asian

Black or African American

Native American

Native Hawaiian or Pacific Islander

Other race

Water Mill Population by Race

Water Mill Population Pyramid 2024

Water Mill Median Age

54.9

Total

56.2

Male

51.8

Female

Water Mill Adults

There are 2,052 adults, (455 of whom are seniors) in Water Mill.

Water Mill Age Dependency

44.5

Age Dependency Ratio

28.5

Old Age Dependency Ratio

16

Child Dependency Ratio

Water Mill Sex Ratio

Female1,16650.52%
Male1,14249.48%

Water Mill Population by Age

Water Mill Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All1,1162.0591.68.4
Married6092.45928
Non Family3401.0886.813.2
Male1192.821000
Female482.061000

2.39

Average Family Size

2.05

Average Household Size

91.6%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Water Mill Households and Families

Male

Female

Education Attained
Count
Percentage
9th to 12th Grade311.56%
Associates Degree311.56%
Bachelors Degree80340.41%
Graduate Degree71636.03%
High School Graduate24212.18%
Less Than 9th Grade60.3%
Some College1587.95%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Water Mill Educational Attainment by Sex (over 25)

Water Mill Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

Race
Total
High School
Bachelors
White1,8161,7851,354
Hispanic969393
2+ Races939393
Asian383838
Black1299

The highest rate of high school graduation is among asian people with a rate of 100%.

The highest rate of bachelors degrees is among asian people with a rate of 100%.

Water Mill Educational Attainment by Race

All

Male

Female

Name
Average
Male
Female
Bachelors Degree$60,847$0$46,160
Graduate Degree$86,182$85,912$107,935
High School Graduate$0$0$0
Less Than 9th Grade$0$0$0
Overall$61,317$80,700$46,314
Some College$0$0$14,120

$61,317

Average Earnings

$80,700

Average Male

$46,314

Average Female

Water Mill Earnings by Educational Attainment

Water Mill Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Water Mill Language

86.57% of Water Mill residents speak only English, while 13.43% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 6.53% of the population.

Water Mill Language

Water Mill Poverty by Race

rate

Name
Total
In Poverty
Poverty Rate
White2,0041547.68%
Hispanic20741.93%
Black12325%

6.98%

Overall Poverty Rate

0.79%

Male Poverty Rate

13.04%

Female Poverty Rate

Poverty in Water Mill

The race most likely to be in poverty in Water Mill is Black, with 25% below the poverty level.

The race least likely to be in poverty in Water Mill is Hispanic, with 1.93% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.47%. Among those working part-time, it was 21.55%, and for those that did not work, the poverty rate was 5.83%.

Water Mill Poverty

rate

Rate
Poverty
Some College44.97%
Less Than 9th Grade32.43%
Bachelors or Greater4.21%
High School0%

Water Mill Poverty Rate by Education

rate

Rate
Poverty
Female Employed21.89%
Male Employed0%
Male Unemployed0%
Female Unemployed0%

Water Mill Poverty Rate by Employment Status and Sex

Water Mill Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

Name
Median
Mean
Families$250,001$343,369
Households$174,919$295,228
Married Families$250,001$-999,999,999
Non Families$58,800$182,351

mean

median

Income by Household Type

Water Mill Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

61.0%

Overall Marriage Rate

68.4%

Male Marriage Rate

53.6%

Female Marriage Rate

Water Mill Married by Age and Sex

male

female

Water Mill Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 55-64.

Water Mill Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Water Mill Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

35

Number of Veterans

35

Male Veterans

0

Female Veterans

War
Veterans
Second Gulf War23
First Gulf War23
World War II3
Vietnam0
Korea0

Water Mill Veterans by War

count

Age Group
Veterans
35 to 5423
55 to 649
75+3
18 to 340
65 to 740

Water Mill Veterans by Age

count

Name
Veterans
% of Total
Asian230.6052631578947368
White120.006286013619696176

Water Mill Veterans by Race

Water Mill Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

8.57%

Veteran Poverty Rate

8.57%

Veteran Disability Rate

Water Mill Veterans by Education

LaborForceParticipation

70.2%

Labor Force Participation

62.6%

Employment Rate

10.9%

Unemployment Rate

Water Mill Employment by Age

LaborForceParticipation

Water Mill Employment by Race

LaborForceParticipation

Water Mill Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

72.4%

Born in Water Mill

86.05%

Native Born

13.95%

Foreign Born

8.1%

Non Citizen

5.85%

Naturalized

Place of Birth

86.05% of Water Mill residents were born in the United States, with 72.4% having been born in New York. 8.1% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Europe.

Water Mill Place of Birth

Note: data after 2022 is projected based on recent change
Year
Population
Growth
Change
20242,433632.66%
20232,370622.69%
20222,3081959.23%
20212,11325313.6%
20201,86022914.04%
20191,631-275-14.43%
20181,906-290-13.21%
20172,196-153-6.51%
20162,349763.34%
20152,273562.53%
20142,21738320.88%
20131,8341297.57%
20121,70520413.59%
20111,501-58-3.72%
20101,55900%

Water Mill Population by Year