Suffolk County, NY Population Statistics: Density Map Data
Analyze local population trends, population density map, housing costs, and the local economy.
Area Snapshot Statistics
Key statistics on population, economy, housing, and commuting compared to state and national averages. Explore interactive maps for deeper analysis.
Population: density and quick facts
| Metric | Suffolk County | New York Avg | U.S. Average |
|---|---|---|---|
| Population | 1,355,687 | 19,009,591 | 334,821,731 |
| Population density (per sq mi) | 571.1 | 348.5 | 85.8 |
| Population growth (%/yr) | -0.49% | 0.06% | 0.57% |
| Median age | 43.4 | 38.5 | 37.1 |
| Households | 493,231 | 7,641,851 | 128,459,983 |
Population in Suffolk County declined by 4.6% from 2009 to 2023, reaching 1,445,988 in 2023.
Population Growth 2009–2023
Race & Ethnicity
Economy
Suffolk County has a the economy index of B, which means it is quite prosperous.
| Metric | Suffolk County | New York Avg | U.S. Average |
|---|---|---|---|
| Median household income | $129,210 | $85,191 | $78,145 |
| Income growth (%/yr) | 5.26% | 4.93% | 5.07% |
| Unemployment rate | 4.6% | 6.2% | 5.2% |
The median household income in Suffolk County is about 52% higher than in New York.
Housing
| Metric | Suffolk County | New York Avg | U.S. Average |
|---|---|---|---|
| Median home price | $489,525 | $436,407 | $242,182 |
| Median rent | $2,211 | $1,576 | $1,342 |
| Homeownership rate | 82.1% | 54.2% | 65.1% |
The median home price in Suffolk County is about 18.5 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $2,211 per month for that long.
Commute Time & Mobility
Commuters in Suffolk County spend about 53 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 219 hours, about 9.1 full days, spent commuting.
| Metric | Suffolk County | New York Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 26.3 | 29.0 | 22.5 |
| Round-trip commute (min) | 52.5 | 57.9 | 44.9 |
| Yearly time spent (hours) | 219 | 241 | 187 |
| Estimated yearly cost | $6,782 | $7,480 | $5,803 |
| Work from home | 11.1% | 13.4% | 13.4% |
| Highway traffic (vehicles/day) | 15,516 | 9,257 | 8,813 |
| Local road traffic (vehicles/day) | 2,434 | 1,586 | 1,355 |
Fastest commutes among counties in
New York:
Chautauqua County (15.3 min), Hamilton County (15.8 min), Clinton County (16.4 min).
Slowest:
Bronx County (45.1 min), Kings County (42.1 min), Queens County (42.1 min).
The average commute time in Suffolk County is 26 minutes, shorter than the 29 minutes in New York.
Estimated yearly cost applies a single national wage rule of thumb (U.S. Bureau of Labor Statistics average hourly earnings), not a measurement of wages in this area. Traffic volume figures come from proprietary Ticon and TrafficZoom data.
Education & Households
Suffolk County has a education index of B, which means it is quite educated.
| Metric | Suffolk County | New York Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 36.8% | 36.5% | 31.6% |
| Average household size | 2.89 | 2.51 | 2.54 |
Highest education index among counties in
New York:
New York County (0.5), Tompkins County (0.4), Westchester County (0.4).
Lowest:
Bronx County (0.2), Orleans County (0.2), Hamilton County (0.2).
Health
Suffolk County has a health index of A, which means it is very healthy.
| Metric | Suffolk County | New York Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 80.7 | 80.3 | 78.3 |
| Self-rated poor health | 10.5% | 13.2% | 16.3% |
| Smokers | 13.8% | 17.4% | 19.0% |
Highest health index among counties in
New York:
Tompkins County (0.8), Nassau County (0.8), New York County (0.8).
Lowest:
Bronx County (0.8), Montgomery County (0.8), Cattaraugus County (0.8).
Frequently Asked Questions
Common questions about Suffolk County, New York.
What is the population of Suffolk County, New York?
The population of Suffolk County, New York is 1,355,687, compared to the U.S. total of 334,821,731.
What is the population density of Suffolk County, New York?
The population density of Suffolk County, New York is 571.1 people per square mile, compared to the U.S. average of 85.8 people per square mile.
What is the median household income in Suffolk County, New York?
The median household income in Suffolk County, New York is $129,210, compared to the U.S. median of $78,145.
What is the median home price in Suffolk County, New York?
The median home price in Suffolk County, New York is $489,525, compared to the U.S. median of $242,182.
What is the unemployment rate in Suffolk County, New York?
The unemployment rate in Suffolk County, New York is 4.6%, compared to the U.S. average of 5.2%.