Suffolk County, New York

159 cities & places have their primary county here.

Population: 1,525,680
Median household income: $128,329
Median home value: $539,500

Suffolk County is a county in New York with a population of 1,525,680. 159 cities and places have their primary county here. The median household income of $128,329 is above the New York median ($84,578).

From 2019 to 2023, Suffolk County's population grew 2.8% from 1,483,832 to 1,525,680, while its median household income rose 27.0% from $101,031 to $128,329.

The median gross rent is $2,190. 39.9% of adults 25 and older hold a bachelor's degree or higher.

Demographics

ACS 2019–2023

Population: 1,525,680
Median age: 41.7 yrs
Median household income: $128,329
Median home value: $539,500
Median gross rent: $2,190
Housing units: 579,790
Homeownership rate: 81.9%
Bachelor's degree or higher: 39.9%
Unemployment rate: 4.6%

Trends

ACS 5-year · 2019–2023

Population

1,483,8321,525,680

Median household income

$101,031$128,329

Median home value

$397,400$539,500

Median gross rent

$1,742$2,190

Year	Population	Median household income	Median home value	Median gross rent
2019	1,483,832	$101,031	$397,400	$1,742
2020	1,481,364	$105,362	$413,900	$1,810
2021	1,522,998	$111,660	$436,300	$1,895
2022	1,524,486	$122,498	$490,800	$2,113
2023	1,525,680	$128,329	$539,500	$2,190

Each year is a US Census Bureau ACS 5-year estimate ending that year.

Age distribution

Under 55.3%

5 to 1715.6%

18 to 248.9%

25 to 3412.1%

35 to 4412.0%

45 to 5413.6%

55 to 6415.0%

65 to 7410.1%

75 and over7.4%

	Count	Share
Under 5	81,002	5.3%
5 to 17	238,322	15.6%
18 to 24	136,018	8.9%
25 to 34	185,079	12.1%
35 to 44	182,350	12.0%
45 to 54	207,944	13.6%
55 to 64	228,432	15.0%
65 to 74	153,692	10.1%
75 and over	112,841	7.4%

Race & ethnicity

	Count	Share
White (non-Hispanic)	963,469	63.2%
Black or African American	104,372	6.8%
American Indian & Alaska Native	2,320	0.2%
Asian	64,434	4.2%
Native Hawaiian & Pacific Islander	215	0.0%
Some other race	11,348	0.7%
Two or more races	40,592	2.7%
Hispanic or Latino (any race)	338,930	22.2%

Educational attainment (age 25+)

No high school diploma9.5%

High school graduate24.8%

Some college or associate's25.8%

Bachelor's degree21.5%

Graduate or professional degree18.4%

	Count	Share
No high school diploma	101,857	9.5%
High school graduate	265,633	24.8%
Some college or associate's	276,192	25.8%
Bachelor's degree	229,744	21.5%
Graduate or professional degree	196,912	18.4%

Commute to work

Mean travel time to work: 32 min

Drove alone73.4%

Carpooled7.4%

Public transit5.2%

Walked1.3%

Bicycle0.2%

Worked from home10.7%

Other means1.7%

How workers get to work

	Count	Share
Drove alone	564,097	73.4%
Carpooled	57,014	7.4%
Public transit	40,247	5.2%
Walked	9,996	1.3%
Bicycle	1,704	0.2%
Worked from home	82,212	10.7%
Other means	13,050	1.7%

Travel time

	Count	Share
Under 15 min	153,083	22.3%
15 to 29 min	223,988	32.6%
30 to 44 min	149,138	21.7%
45 to 59 min	58,391	8.5%
60+ min	101,508	14.8%

Households

Average household size: 2.92
Poverty rate: 6.4% (95,543 of 1,498,692)

	Count	Share
Family households	370,809	72.4%
Nonfamily households	141,471	27.6%

Housing

Median year structure built: 1970

Occupancy

	Count	Share
Occupied	512,280	88.4%
Vacant	67,510	11.6%

Tenure (of occupied units)

	Count	Share
Owner-occupied	419,631	81.9%
Renter-occupied	92,649	18.1%

1-unit, detached79.9%

1-unit, attached5.8%

2 to 4 units4.7%

5 to 19 units4.8%

20 or more units3.5%

Mobile home & other1.3%

Units in structure

	Count	Share
1-unit, detached	463,095	79.9%
1-unit, attached	33,652	5.8%
2 to 4 units	27,315	4.7%
5 to 19 units	28,093	4.8%
20 or more units	20,183	3.5%
Mobile home & other	7,452	1.3%

Geography

County GEOID: 36103
State: New York
Land area: 911 sq mi
Water area: 1,462 sq mi
Center point: 40.9436, -72.6922

Cities & places

159