Suffolk County, New York
Population, percent change - April 1, 2020 (estimates base) to July 1, 2025, (V2025) 1.3%
People
Population
Population estimates, July 1, 2025, (V2025) 1,546,090
Population estimates, July 1, 2024, (V2024) 1,535,909
Population estimates base, April 1, 2020, (V2025) 1,525,920
Population estimates base, April 1, 2020, (V2024) 1,525,913
Population, percent change - April 1, 2020 (estimates base) to July 1, 2025, (V2025) 1.3%
Population, percent change - April 1, 2020 (estimates base) to July 1, 2024, (V2024) 0.7%
Population, Census, April 1, 2020 1,525,920
Population, Census, April 1, 2010 1,493,350
Age and Sex
Persons under 5 years, percent 5.3%
Persons under 18 years, percent 20.5%
Persons 65 years and over, percent 19.0%
Female persons, percent 50.4%
Race and Hispanic Origin
White alone, percent 81.8%
Black alone, percent(a) 9.8%
American Indian and Alaska Native alone, percent(a) 0.9%
Asian alone, percent(a) 5.1%
Native Hawaiian and Other Pacific Islander alone, percent(a) 0.1%
Two or More Races, percent 2.2%
Hispanic or Latino, percent(b) 23.8%
White alone, not Hispanic or Latino, percent 61.5%
Population Characteristics
Veterans, 2020-2024 48,220
Foreign-born persons, percent, 2020-2024 16.8%
Housing
Housing Units, July 1, 2025, (V2025) 583,777
Owner-occupied housing unit rate, 2020-2024 82.2%
Median value of owner-occupied housing units, 2020-2024 $578,400
Median selected monthly owner costs - with a mortgage, 2020-2024 $3,320
Median selected monthly owner costs - without a mortage, 2020-2024 $1,478
Median gross rent, 2020-2024 $2,255
Building Permits, 2025 1,399
Families & Living Arrangements
Households, 2020-2024 512,565
Persons per household, 2020-2024 2.93
Living in the same house 1 year ago, percent of persons age 1 year+ , 2020-2024 92.8%
Language other than English spoken at home, percent of persons age 5 years+, 2020-2024 24.8%
Computer and Internet Use
Households with a computer, percent, 2020-2024 96.5%
Households with a broadband Internet subscription, percent, 2020-2024 93.2%
Education
High school graduate or higher, percent of persons age 25 years+, 2020-2024 90.4%
Bachelor's degree or higher, percent of persons age 25 years+, 2020-2024 40.2%
Health
With a disability, under age 65 years, percent, 2020-2024 6.8%
Persons without health insurance, under age 65 years, percent 5.2%
Economy
In civilian labor force, total, percent of population age 16 years+, 2020-2024 65.5%
In civilian labor force, female, percent of population age 16 years+, 2020-2024 61.0%
Total accommodation and food services sales, 2022 ($1,000)(c) 5,317,851
Total health care and social assistance receipts/revenue, 2022 ($1,000)(c) 17,447,690
Total transportation and warehousing receipts/revenue, 2022 ($1,000)(c) 3,637,150
Total retail sales, 2022 ($1,000)(c) 36,864,823
Total retail sales per capita, 2022(c) $24,127
Transportation
Mean travel time to work (minutes), workers age 16 years+, 2020-2024 31.1
Income & Poverty
Median households income (in 2024 dollars), 2020-2024 $130,686
Per capita income in past 12 months (in 2024 dollars), 2020-2024 $57,164
Persons in poverty, percent 6.7%
Businesses
Businesses
Total employer establishments, 2023 50,748
Total employment, 2023 592,580
Total annual payroll, 2023 ($1,000) 39,329,657
Total employment, percent change, 2022-2023 2.3%
Total nonemployer establishments, 2023 156,425
All employer firms, Reference year 2023 42,232
Male-owned employer firms, Reference year 2023 29,342
Female-owned employer firms, Reference year 2023 8,091
Minority-owned employer firms, Reference year 2023 8,585
Nonminority-owned employer firms, Reference year 2023 31,473
Veteran-owned employer firms, Reference year 2023 S
Nonveteran-owned employer firms, Reference year 2023 38,755
Geography
Geography
Population per square mile, 2020 1,674.7
Population per square mile, 2010 1,637.4
Land area in square miles, 2020 911.17
Land area in square miles, 2010 912.05
FIPS Code 36103