Williston Park, NY

Village in Nassau County, NY, US

By Neilsberg Research

Last updated May 1, 2026

Key Indicators

A quick look at key numbers

Population

7,542

Source: U.S. Census Bureau American Community Survey (ACS) 2020-2024 5-Year Estimates

Median Age

40.5

years ∙ half population younger than 40.5, half older

Diversity Index

50.5%

chance two random people differ in race and ethnicity

Nativity

18.1%

foreign-born population

81.9%Native

18.1% Foreign-born

Geographic Context

Location, size, and surroundings

About

Williston Park is a village within Nassau County, New York, United States.

Location

Village in Nassau County, NY, US

Co-ordinates

DEC40.758756° N, 73.646588° W

DMS40° 45′ 31.52″ N, 73° 38′ 47.72″ W

Population Density & area

12,048/sq mi (4,650/km²)

Total Area

0.626 sq mi (1.622 km²)

Land Area

0.626 sq mi (1.622 km²) · 100%

Water Area

0 sq mi (0 km²) · 0%

Demographics & Living

Who lives here, how households are formed, and community composition

Population Composition

Key characteristics of the population

Sex Distribution

51.4% male

Male 51.4%

Female 48.6%

males per 100 females

Williston Park 105.8

Nassau County 96.9

New York 95.5

Nativity

18.1%

foreign-born population

81.9%Native

18.1% Foreign-born

% Foreign-born

Williston Park 18.1%

Nassau County 23.3%

New York 22.8%

Age Distribution

How the population is spread across age groups

Median Age

40.5

years ∙ half population younger than 40.5, half older

Williston Park

40.5

Nassau County

New York

39.8

Dependency ratio

66.4

dependents per 100 working-age adults

Williston Park 66.4

Nassau County 67.1

New York 62.3

AGE DISTRIBUTION

Distribution of age group

Median age

	Williston Park	Nassau County	New York
Age Group
Children (Under 18)	24.7%	21.5%	20.5%
Working age (18-64)	60.1%	59.8%	61.6%
Senior (65+)	15.2%	18.7%	17.9%
Dependency ratio
Total dependency ratio	66.4	67.1	62.3
Child dependency ratio	41.2	35.9	33.2
Old-age dependency ratio	25.2	31.2	29.1

Racial & Ethnic Composition

Racial and ethnic makeup and how it compares

Race & Ethnicity

White

66.9%

Black

Asian

16.6%

Hispanic

13.9%

Other

1.6%

Note: White, Black, and Asian refer to individuals belonging to a single race and not of Hispanic origin. Hispanics may be of any race.

Diversity Index

50.5%

chance two random people differ in race and ethnicity

Williston Park 50.5%

Nassau County 64.3%

New York 65.4%

Note: The Diversity Index (DI), based on the Blau Index, measures the probability that two randomly selected individuals differ in race and ethnicity. Values range from 0 (no diversity) to 1 (high diversity) and are shown as percentages.

RACIAL & ETHNIC COMPOSITION

Race & Ethnicity

Percentage of Williston Park population

	Williston Park	Nassau County	New York
Hispanic or Latino	13.9%	18.7%	19.8%
Mexican	0.2%	1.1%	2.6%
Puerto Rican	1.1%	2.7%	5.1%
Cuban	0%	0.5%	0.4%
Other Hispanic / Latino	12.6%	14.4%	11.8%
Not Hispanic or Latino	86.1%	81.3%	80.2%
One race	85.3%	78.3%	76.4%
White	66.9%	54.3%	52.8%
Black or African American	1%	10.8%	13.4%
American Indian and Alaska Native	0%	0%	0.2%
Asian	16.6%	12.2%	9%
Native Hawaiian and Other Pacific Islander	0%	0%	0%
Some Other Race	0.8%	1%	1%
Two or more races (Multiracial)	0.8%	3%	3.8%

Household & Families Composition

Household size, type, and family structure

Household structure

81.1% family

Family 81.1%

Non family 18.9%

% family households

Williston Park 81.1%

Nassau County 77%

New York 61.4%

Average household size

2.97

persons per household

Williston Park

2.97

Nassau County

2.99

New York

2.49

Household & Family COMPOSITION

Households

Percentage of Williston Park population

	Williston Park	Nassau County	New York
Total households	2,531	458,166	7,722,646
Average houshold size	2.97	2.99	2.49
Family households	2,053	352,956	4,738,075
Average family size	3.34	3.42	3.16
Married couple family	1,559	278,403	3,279,487
Other families	494	74,553	1,458,588
Male householder	159	21,294	398,169
Female householder	335	53,259	1,060,419
Non-family households	478	105,210	2,984,571
One-person households	401	87,683	2,398,170
Male householder	208	33,112	1,045,868
Senior (65+) living alone	79	14,889	332,696
Female householder	193	54,571	1,352,302
Senior (65+) living alone	124	36,534	673,031
Other living arrangements	77	17,527	586,401

Housing Profile

Housing stock, ownership, rentals, and cost burdens

Total housing units

2,652

housing units

Williston Park 2,652

Nassau County 479,044

New York 8,585,241

Occupancy status

95.4% occupied

Occupied 95.4%

Vacant 4.6%

vacancy rate

Williston Park 4.6%

Nassau County 4.4%

New York 10%

Housing Characteristics

How the housing supply is structured and used

Types of Housing unit

76.3%

Single family houses

76.3%

Apartments in multi-unit structures

23.7%

Mobile homes

Boat, RV, van, etc

Median Year Built

1938

Half of houses were built before 1938, and half after.

* The Census Bureau did not report an exact median year built for Williston Park the estimate falls at or before 1939, the lower limit of the survey's reporting range.

Historic ∙ 1939 or earlier

54.3%

Postwar & mid-century ∙ 1940 - 1969

38%

Late 20th century ∙ 1970 - 1999

7.1%

Modern ∙ 2000 or later

0.7%

Note: Median year built reflects occupied units only; distribution includes all units.

Housing Characteristics

Units, rooms & bedrooms

Physical characteristics of housing units

	Williston Park	Nassau County	New York
Rooms per unit
Median rooms	6.3	6.5	5
1–3 rooms	11.2%	9.9%	24.3%
4–6 rooms	42.3%	39.8%	48.4%
7+ rooms	46.5%	50.3%	27.2%
Bedrooms
No bedroom / studio	1.3%	2.3%	5.4%
1 bedroom	11.3%	8.2%	19%
2 bedrooms	17.7%	14.1%	26.6%
3 bedrooms	49.3%	36.9%	31.1%
4+ bedrooms	20.4%	38.5%	17.9%
At a glance
Median year built	1938	1955	1959
Total housing units	2,652	479,044	8,585,241

Occupancy Profile

Who is inside and how they use it

Homeownership

79.2% owners

Renter-occupied 20.8%

Owner-occupied 79.2%

homeownership rate

Williston Park 79.2%

Nassau County 81.9%

New York 54.3%

Average household size

3.11

Owner-occupied

2.44

Renter-occupied

owner-occupied average size

Williston Park 3.11

Nassau County 3.08

New York 2.66

Housing Characteristics

Occupied unit characteristics

Tenure, crowding, and utilities

	Williston Park	Nassau County	New York
Total occupied units	2,531	458,166	7,722,646
Year moved in
2020 or later	9.7%	14%	20.5%
2010 to 2019	38.4%	32.1%	36.5%
2000 to 2009	17.1%	20.5%	17.8%
1999 or earlier	34.8%	33.4%	25.2%
Occupants per room
1.00 or fewer	97.1%	96.6%	94.7%
1.01 to 1.50	2.1%	2.3%	3.1%
1.51 or more	0.8%	1.1%	2.2%
Vehicles availability
No vehicles	3.2%	6.8%	29.2%
1 vehicle	24.8%	28.6%	33.6%
2 vehicles	51%	41.4%	25.4%
3 or more vehicles	21%	23.3%	11.8%
House heating fuel used
Gas	86.3%	64.7%	64%
Electricity	3.8%	7.3%	15.4%
Solar	0%	0.3%	0.1%
Fuel oil, kerosene etc	9.6%	26.5%	16.1%
All other fuels	0.2%	0.7%	2.8%
No fuel used	0%	0.6%	1.6%
Selected characteristics
Lacking complete plumbing	0.8%	0.3%	0.4%
Lacking complete kitchen	0.8%	0.7%	0.8%
No telephone service available	1.8%	0.9%	0.9%

Housing Value

What owner-occupied units are worth

Median home value

$739,800

owner-occupied units

Median value(USD)

Williston Park

$739,800

Nassau County

$684,700

New York

$423,800

Housing Cost Burden

31.8%

of homeowners with a mortgage are cost-burdened

% Cost-Burdened Households

Owners with a mortgage

31.8%

Owners without a mortgage

23%

Renters

65.7%

Note: Households spending 30% or more of their income on housing costs are considered cost-burdened.

Financial characteristics

Property value and housing costs

Tenure, crowding, and utilities

	Williston Park	Nassau County	New York
Property value
Median Value	$739,800	$684,700	$423,800
Under $100,000	2.2%	2.2%	9.5%
$100,000 - $200,000	0%	1.3%	15%
$200,000 - $300,000	0%	2.4%	13.2%
$300,000 - $500,000	3.4%	14.1%	19.7%
$500,000 - $1,000,000	89.3%	63.4%	30.1%
$1,000,000 and more	5.1%	16.6%	12.6%
Owner-occupied households
With a mortgage	65.8%	62.1%	57.8%
Without a mortgage	34.2%	37.9%	42.2%
Median monthly owner costs
With a mortgage	$3,749	$3,795	$2,555
Without a mortgage	$1,501	$1,501	$958
Gross rent
Median rent	$2,171	$2,252	$1,621

Education Profile

How educated is the community and how education pays off

Adults with a college degree

53%

of adults 25+ with a bachelor's degree or higher

Williston Park 53%

Nassau County 49.7%

New York 40.2%

Adults without a high school diploma

5.5%

of adults (25+) without a high school diploma

Williston Park 5.5%

Nassau County 7.8%

New York 12%

School Enrollment

Who is enrolled in school and at what level

School enrollment

1,956

population (age 3+) enrolled in school

Nursery / Preschool

4.7%

K–12

71.6%

College / Undergraduate

19.1%

Graduate / Professional

4.6%

College-going rate (18-24 yr olds)

48.1%

of 18-24-year-olds in college or graduate school

Williston Park

48.1%

Nassau County

54.7%

New York

48.5%

Enrollment & school type

Enrollment levels, college-going rate, and public vs private school split

Population 3+ currently enrolled in a school

	Williston Park	Nassau County	New York
Total enrolled (age 3+)	1,956	343,669	4,642,703
Nursery / preschool	4.7%	6.4%	6.1%
K–12	71.6%	65%	64.1%
Kindergarten	10%	4.5%	4.9%
Elementary: Grades 1–4	16.5%	18.9%	18.7%
Elementary: Grades 5–8	21%	19.8%	20.1%
High School: Grades 9–12	24.2%	21.8%	20.4%
College or graduate school	23.7%	28.6%	29.8%
College, undergraduate	19.1%	20.6%	22.5%
Graduate, professional school	4.6%	8%	7.3%
College-going rate · 18-24 yr olds	48.1%	54.7%	48.5%
School type
Public school	74.2%	74.2%	74.7%
Private school	25.8%	25.8%	25.3%

Education Attainment by Level & Gender

What is the highest level of education completed among adults

Education attainment

5,140

population 25 years and over

Total adults (25+)

Less than 9th grade

1.3%

9th-12th, no diploma

4.2%

HS graduate

14.4%

Some college no degree

18.2%

Associates degree

Bachelors degree

28.2%

Graduate or professional degree

24.8%

Attainment by gender

Male vs Female

Adults (25+) · Share within each education level

% male · % female

Less than 9th grade

13.4% · 86.6%

9th-12th, no diploma

64.7% · 35.3%

HS graduate

29.1% · 70.9%

Some college no degree

52.4% · 47.6%

Associates degree

43.3% · 56.7%

Bachelors degree

66.4% · 33.6%

Graduate or professional degree

37.2% · 62.8%

Educational Attainment Overview

Distribution and key education attainment rates for adults (25+)

Highest credential completed · adults 25+

	Williston Park	Nassau County	New York
Population (25+)	5,140	975,442	14,017,184
Less than 9th grade	1.3%	4.3%	6%
9th–12th, no diploma	4.2%	3.5%	6%
High school diploma or GED	14.4%	20.7%	24.3%
Some college, no degree	18.2%	13.7%	14.6%
Associate's degree	9%	8.1%	8.8%
Bachelor's degree or higher	53%	49.7%	40.2%
Bachelor's degree	28.2%	26.8%	22.4%
Graduate or professional	24.8%	22.8%	17.9%
High School or higher	94.5%	92.2%	88%

Earnings by education level

percentage as applicable

Median Earnings

$80,601

Median earnings for adults 25+, by level

Less than HS graduate

$28,343

HS graduate

$82,933

Some college or associates

$47,632

Bachelors degree

$87,150

Graduate or professional degree

$113,466

Poverty Rate

for ages 25+, with bachelors degree or higher

Less than HS graduate

5.7%

HS graduate

3.4%

Some college or associates

4.9%

Bachelors degree or higher

Outcomes by Education Level

Earnings and poverty rates across education levels (25+)

Adults 25+

	Williston Park	Nassau County	New York
Median earnings
Population 25+, with earnings	$80,601	$74,834	$57,966
Less than high school graduate	$28,343	$36,352	$31,511
High school graduate (includes equivalency)	$82,933	$47,921	$40,549
Some college or associate's degree	$47,632	$61,483	$49,306
Bachelor's degree	$87,150	$91,511	$76,052
Graduate or professional degree	$113,466	$110,846	$95,435
Poverty rates
Less than high school graduate	5.7%	15.6%	28.1%
High school graduate (includes equivalency)	3.4%	7.9%	16.8%
Some college or associate's degree	4.9%	5%	11.4%
Bachelor's degree or higher	1%	2.5%	5.3%

Insights for Williston Park, by topic

Income By year By race By age By gender

Population By year By race By age By gender

About Neilsberg Research

Neilsberg Research team are data scientists with expertise in processing, analysis and visualization of big data helping small businesses make right decisions.

Cite this page

Citation style

Url to be used as reference

This article is for informational purposes only and is not intended to be legal or tax advice. We recommend that you consult with a qualified professional such as a lawyer or accountant before making a decision. Many of the products and services featured here are from our affiliate partners. We may receive commissions on purchases made from our chosen links. Read advertiser disclosure.