COUNTY · 1990 CENSUS

Suffolk County

New York · 1,321,864 residents · 911 sq mi

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The short version

Suffolk County is a county of 1,321,864 people in New York. Households here earn about 49% more than in New York as a whole. The typical home is worth $165,200. 80% of homes are owner-occupied. Renters pay $802 a month at the median. The median household earns $49,128, about 63% above the national median.

At a glance

Wealthier

above the US median

US median: $30,130

Mid-age

median age 33.5

US median: 33.0

More educated

23% hold a bachelor's degree

US average: 20%

Stable housing

home values roughly flat, inflation adjusted

US median home: $93,722

Section 01

Population & growth

Total population

1,321,864

−7%vs 2000

vs 1,419,369 in 2000

1990 – 2025

Median age

33.5

−8%vs 2000

vs 36.5 in 2000

US average: 33.0

Land area

911 sq mi

Population, 1990 – 2024

20241.5M

Age distribution, 1990

Under 57%(92,774)

US avg: 7.3%

5 to 96.5%(85,965)

US avg: 7.3%

10 to 146.8%(90,275)

US avg: 6.9%

15 to 197.3%(97,007)

US avg: 7.1%

20 to 247.6%(100,800)

US avg: 7.5%

25 to 3417.3%(228,360)

US avg: 17.5%

35 to 4415.7%(207,663)

US avg: 15.1%

45 to 5411.9%(157,466)

US avg: 10.2%

55 to 649.1%(120,560)

US avg: 8.5%

65 to 746.3%(83,837)

US avg: 7.3%

75 to 843.3%(43,877)

US avg: 4%

85 and over1%(13,280)

US avg: 1.2%

BAR + DOT: THIS PLACE · TICK: US AVERAGE

Section 02

Income & economy

Median household income

$49,128

−1%inflation adjusted, since 2000

vs $65,288 in 2000

US average: $30,130

1990 – 2024

Per capita income

$18,481

−30%vs 2000

vs $26,577 in 2000

US average: $14,340

Poverty rate

4.7%

−1.2 ptsvs 2000

vs 6.0% in 2000

US average: 13.2%

Section 03

Housing

Median home value

$165,200

+19%inflation adjusted, since 2000

vs $183,500 in 2000

US average: $93,722

1990 – 2024

Median gross rent

$802

+12%inflation adjusted, since 2000

vs $945 in 2000

US average: $450

Owner-occupied

80.1%

+0.4 ptsvs 2000

vs 79.8% in 2000

19.9% rent

Section 04

Race & ethnicity

2000

White, non-Hispanic78.8%(1,118,405)

Black6.6%(93,262)

Hispanic / Latino10.5%(149,411)

Asian2.4%(34,355)

Other0%

1990

White, non-Hispanic90.2%(1,192,236)

Black6.2%(82,473)

Hispanic / Latino6.4%(84,238)

Asian1.7%(22,185)

Other1.9%(24,970)

No data for the years selected.

Section 04 · Origins

Detailed origins & ancestry

Detailed origin tables are available for 2024; showing 2024 data.

Hispanic origin

Central American7.4%(113,963)

Salvadoran5%(77,014)

South American4.7%(72,030)

Puerto Rican4.3%(66,071)

Dominican2.5%(37,910)

Ecuadorian2%(30,197)

Mexican1.5%(23,547)

Colombian1.5%(23,114)

Guatemalan1%(15,499)

Honduran1%(15,177)

Peruvian0.7%(10,744)

Cuban0.5%(7,122)

+ 10 more hispanic origin groups with data

Spaniard0.4%(6,455)

Costa Rican0.2%(2,482)

Chilean0.2%(2,303)

Argentine0.1%(1,899)

Panamanian0.1%(1,780)

Venezuelan0.1%(1,571)

Nicaraguan0.1%(1,540)

Bolivian0.1%(815)

Uruguayan0%(699)

Paraguayan0%(275)

Asian origin

Asian Indian1.3%(20,045)

Chinese1%(15,862)

Pakistani0.6%(9,752)

Filipino0.4%(5,636)

Korean0.3%(4,967)

Bangladeshi0.2%(2,411)

Vietnamese0.1%(1,068)

Nepalese0.1%(976)

Kazakh0.1%(964)

Japanese0%(738)

Sri Lankan0%(592)

Taiwanese0%(429)

+ 6 more asian origin groups with data

Thai0%(356)

Indonesian0%(282)

Burmese0%(245)

Laotian0%(75)

Cambodian0%(49)

Malaysian0%(48)

Pacific Islander origin

Native Hawaiian0%(267)

Samoan0%(196)

Chamorro0%(88)

Tongan0%(71)

Guamanian0%(14)

Fijian0%(12)

Chuukese0%(4)

Ancestry

Italian20.6%(314,782)

Irish16.2%(247,260)

German11%(168,143)

English4.2%(64,519)

Polish4%(61,286)

American3.9%(59,196)

West Indian2.1%(32,384)

Russian1.5%(23,685)

Greek1.2%(18,288)

French1%(15,249)

Haitian0.9%(14,486)

Scottish0.8%(11,877)

+ 50 more ancestry groups with data

Jamaican0.7%(11,280)

Norwegian0.6%(9,368)

Dutch0.5%(7,806)

Ukrainian0.5%(7,686)

Subsaharan African0.5%(7,391)

Swedish0.5%(6,963)

Hungarian0.4%(6,719)

Arab0.4%(6,449)

Turkish0.4%(6,443)

Austrian0.4%(5,814)

Portuguese0.4%(5,797)

Czech0.3%(4,626)

Lithuanian0.3%(4,085)

Guyanese0.3%(4,053)

Scotch-Irish0.2%(3,561)

Trinidadian & Tobagonian0.2%(3,525)

French Canadian0.2%(3,203)

Danish0.2%(2,482)

Welsh0.2%(2,372)

Brazilian0.2%(2,299)

Croatian0.1%(2,210)

British0.1%(2,172)

Armenian0.1%(2,135)

Swiss0.1%(1,953)

Romanian0.1%(1,930)

Egyptian0.1%(1,759)

Nigerian0.1%(1,736)

Finnish0.1%(1,727)

Lebanese0.1%(1,473)

Canadian0.1%(1,439)

Ghanaian0.1%(1,258)

Iranian0.1%(1,219)

Slovak0.1%(1,193)

Israeli0.1%(988)

Belgian0.1%(849)

Syrian0.1%(782)

Jordanian0%(598)

Latvian0%(556)

Barbadian0%(515)

Moroccan0%(500)

Serbian0%(385)

Palestinian0%(305)

Australian0%(256)

Iraqi0%(168)

Slovene0%(165)

Bulgarian0%(140)

Ethiopian0%(96)

Macedonian0%(27)

Cape Verdean0%(20)

Kenyan0%(19)

RANKED:Largest Italian population · Largest Irish population · Largest German population · Largest Central American population · Largest Salvadoran population

Section 05

Education

Bachelor's degree or higher

23.0%

−4.5 ptsvs 2000

vs 27.5% in 2000

US average: 20.3%

High school or higher

82.2%

−4.0 ptsvs 2000

vs 86.2% in 2000

US average: 75.2%

Graduate degree

9.9%

−2.0 ptsvs 2000

vs 11.8% in 2000

US average: 7.1%

Section 06

Commute & transportation

Average commute

25.9 min

+14%vs 2000

vs 22.8 min in 2000

US average: 21.9

Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

Marital status (2024)

Men 15+

Never married37.1%(232,476)

Married53.4%(334,698)

Widowed2.7%(16,949)

Divorced6.9%(43,181)

Women 15+

Never married31.4%(202,612)

Married49.8%(321,223)

Widowed8.7%(56,211)

Divorced10%(64,595)

SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024

Section 09

Health coverage

Showing 2024 (the nearest year with coverage data).

Uninsured

4.7%

−5.1 ptssince 2013

from 9.8% in 2013

US average: 8.4%

Employer-based

64.8%

−3.3 ptssince 2020

from 68.1% in 2020

US average: 54.8%

Direct-purchase

15.5%

+1.4 ptssince 2020

from 14.1% in 2020

US average: 13.8%

Medicare

18.9%

+0.9 ptssince 2020

from 18.0% in 2020

US average: 18.4%

Medicaid

16.6%

+1.7 ptssince 2020

from 14.9% in 2020

US average: 20.9%

VA health care

1.2%

−0.2 ptssince 2020

from 1.4% in 2020

US average: 2.2%

Any private

77.0%

−2.4 ptssince 2020

from 79.4% in 2020

US average: 67.1%

Any public

32.4%

+2.0 ptssince 2020

from 30.4% in 2020

US average: 36.7%

Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.

Section 09 · Service history

Veterans

Veterans by period of service, 2024

Gulf War (2001 or later)16.5%(7,974)

US avg: 26.4%

Gulf War (1990s)14.4%(6,944)

US avg: 24.3%

Vietnam era38.5%(18,588)

US avg: 33.1%

Korean War8.7%(4,179)

US avg: 4.5%

World War II1.7%(833)

US avg: 1%

Share of the 48,220 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.

BAR + DOT: THIS PLACE · TICK: US AVERAGE

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