Suffolk County
Large central metro
FIPS 25025
Profiled Cities (1)
People
791.9K
Population
Census 2025 Est.13593.0/sq mi
Density
Census 2025 Est.0.1%
Growth 2020–25
Census 2020–2025$96K
Median HH Income
ACS 2024 5-yr33.9
Median Age
ACS 2024 5-yr87.5%
Bachelor's+
ACS 2024 5-yr16.2%
Poverty Rate
SAIPE 20243.1%
Uninsured
ACS 2024 5-yr36.5%
Owner-Occupied
ACS 2024 5-yr12.6%
Disability
ACS 2024 5-yr23.2%
Hispanic
ACS 2024 5-yr43.6%
Non-Hisp. White
ACS 2024 5-yr17.1%
Non-Hisp. Black
ACS 2024 5-yrMigration
IRS Statistics of Income county migration. Measures tax filer movement, not Census population counts.
44.9K
Inflow (people)
IRS SOI 2022–2357K
Outflow (people)
IRS SOI 2022–23-12,099
Net Migration
IRS SOI 2022–23Economy
3.9%
Unemployment
BLS LAUS 2025463.4K
Labor Force
BLS LAUS 2025$109K
Per Capita Income
BEA 2024$190.8B
County GDP
BEA 202422K
Business Establishments
CBP 2023720.4K
Employees
CBP 2023$85.9B
Annual Payroll
CBP 2023Housing
$706K
Median Home Value
ACS 2024 5-yr$2K
Median Gross Rent
ACS 2024 5-yr34K
Owner HH w/ Housing Problems
ACS 2024 5-yr100.6K
Renter HH w/ Housing Problems
ACS 2024 5-yrYes
Housing Stress (USDA)
ACS 2024 5-yrHealth
78th pctile
Social Vulnerability
CDC SVI 202225.2%
Adult Obesity
CDC PLACES 202510.1%
Diabetes
CDC PLACES 202516.7%
Poor Mental Health
CDC PLACES 202511.6%
Current Smoking
CDC PLACES 2025165.5/100K
Primary Care Physicians
HRSA AHRF 2024–258.3/1K
Hospital Beds
HRSA AHRF 2024–25739.0/1K bene
Medicare ER Visits
CMS 2023Environment & Risk
93.5
FEMA Risk Score
FEMA NRI Dec 2025Relatively Moderate
Risk Rating
FEMA NRI Dec 2025Very High
Resilience Rating
FEMA NRI Dec 2025$114.9M
Expected Annual Loss
FEMA NRI Dec 20256.56
PM2.5 (EPA EJScreen)
EPA EJScreen 20240.32
Diesel PM
EPA EJScreen 20241.6%
EJ Demographic Index
EPA EJScreen 2024Broadband & Food Access
1.0%
Fixed Broadband 100/20 Mbps
FCC 20241.0%
Mobile 5G Coverage
FCC 20241.0%
Low Food Access (pop)
USDA FEA 20190.2%
No-Car Low Food Access (HH)
USDA FEA 2019Land & Climate
58.3 sq mi
Land Area
TIGER 202450.7°F
Avg Temp (1991–2020)
NOAA 1991–202060.0°F
Avg Max Temp
NOAA 1991–202041.4°F
Avg Min Temp
NOAA 1991–202048.3"
Annual Precip
NOAA 1991–2020County Character
Metro - Counties in metro areas of 1 million population or more
Rural-Urban Class (RUCC)
TIGER 2024Large central metro
NCHS Urban-Rural Class
TIGER 2024Not industry-dependent
Industry Dependence (USDA)
TIGER 2024None
Typology Flags
TIGER 2024