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COUNTY · 1990 CENSUS

Suffolk County

New York · 1,321,864 residents · 910.922 sq mi
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The short version

Suffolk County is significantly wealthier than the US average, with a median household income of $49,128. Population has declined 7% since 2000. Median home value is $165,200. Poverty is rare here, at 4.7% of residents. Households here earn about 49% more than the New York 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
Population density
1,451 / sq mi
−7%vs 2000
vs 1,558 / sq mi in 2000
US average: 221
Median age
33.5
−8%vs 2000
vs 36.5 in 2000
US average: 33.0
Population, 1990 – 2024
1.3M1.4M1.4M1.5M1.6M1990201020202024Suffolk County
20241.5M
1990201020202024
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
Afford Score
3.4
+20%vs 2000
vs 2.8 in 2000
1990 – 2024
RELATED:See current rent listings in Suffolk County on RentDataNow
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%
Diversity Score42.6%(605,184)
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)
Diversity Score34.2%(451,862)
Diversity Score
34
−20%vs 2000
vs 43 in 2000
1990 – 2024
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.

Drill deeper

Places similar to Suffolk County

Alameda County
Pop 1,636,630
Middlesex County
Pop 1,669,979
Collin County
Pop 1,297,179
Contra Costa County
Pop 1,170,070
Places similar to Suffolk County
Head to head

Compare Suffolk County to nearby counties

SUFFOLK COUNTY VS
South Central Connecticut Planning Region
Income$88,197+80%
Home value$353,100+114%
Population578,741−63%
SEE FULL COMPARISON →
SUFFOLK COUNTY VS
Greater Bridgeport Planning Region
Income$89,667+83%
Home value$428,800+160%
Population337,697−78%
SEE FULL COMPARISON →
SUFFOLK COUNTY VS
Lower Connecticut River Valley Planning Region
Income$104,428+113%
Home value$379,700+130%
Population177,311−89%
SEE FULL COMPARISON →
SUFFOLK COUNTY VS
Naugatuck Valley Planning Region
Income$86,191+75%
Home value$317,700+92%
Population463,349−70%
SEE FULL COMPARISON →
Frequently asked

How many people live in Suffolk County, New York?

Suffolk County, New York has about 1,321,864 residents according to the 1990 Census.

What is the median household income in Suffolk County, New York?

The typical household in Suffolk County, New York earns about $49,128 a year. Half of households make more than that, and half make less.

Is Suffolk County, New York expensive?

In Suffolk County, New York, the median home is worth about $165,200, and the typical rent is about $802 a month.

How educated are people in Suffolk County, New York?

About 23.0% of adults age 25 and over in Suffolk County, New York hold a bachelor's degree or higher.

What is the poverty rate in Suffolk County, New York?

About 4.7% of people in Suffolk County, New York live below the federal poverty line.

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Explore from here

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

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