Suffolk County, NY Demographics
What is the population of Suffolk County?
There are 1,470,036 residents in Suffolk County, with a median age of 44. Of this, 49.52% are males and 50.48% are females. US-born citizens make up 83.24% of the resident pool in Suffolk County, while non-US-born citizens account for 10.89%. Additionally, 5.87% of the population is represented by non-citizens.
A total of 1,344,522 people in Suffolk County currently live in the same house as they did last year.
| Y-o-Y Change | ||
| Total Population | 1,470,036 | -5.2% |
| Male Population | 728,003 | -5.4% |
| Female Population | 742,033 | -5.1% |
Male Population 49.52%
Female Population 50.48%
| Y-o-Y Change | ||
| Median Age | 44 | 0.0% |
| Citizen U.S. Born | 1,223,709 | -4.2% |
| Citizen not U.S. Born | 160,063 | -7.8% |
| Not Citizen | 86,264 | -13.4% |
Citizen U.S. Born 83.24%
Citizen not U.S. Born 10.89%
Not Citizen 5.87%
| Y-o-Y Change | ||
| Moved from Abroad | 5,507 | 4.9% |
| Moved from Same County | 65,023 | -8.0% |
| Moved from Same State | 30,774 | -6.5% |
| Moved from Different State | 10,733 | 4.2% |
| Same House as Last Year | 1,344,522 | -5.2% |
Moved from Abroad 0.38%
Moved from Same County 4.46%
Moved from Same State 2.11%
Moved from Different State 0.74%
Same House as Last Year 92.31%
What are the employment statistics in Suffolk County?
White-collar workers make up 82.64% of the working population in Suffolk County, while blue-collar employees account for 17.36%. There are also 154,528 entrepreneurs in Suffolk County (10.21% of the workforce); 940,792 workers employed in private companies (62.18%); and 294,038 people working in governmental institutions (19.43%).
| Y-o-Y Change | ||
| White Collar | 1,250,304 | 91.4% |
| Blue Collar | 262,642 | 83.3% |
White Collar 82.64%
Blue Collar 17.36%
| Y-o-Y Change | ||
| Self Employees | 154,528 | 91.3% |
| Private Companies | 940,792 | 86.7% |
| Governmental Workers | 294,038 | 97.7% |
| Not for Profit Companies | 123,588 | 95.4% |
Self Employees 10.21%
Private Companies 62.18%
Governmental Workers 19.43%
Not for Profit Companies 8.17%
How many households are there in Suffolk County?
There are a total of 501,665 households in Suffolk County, each made up of around 2 members. Family establishments represent 72.09% of these Suffolk County households, while non-family units account for the remaining 27.91%. Additionally, 30.95% of households have children and 69.05% of households are without children.
| Y-o-Y Change | ||
| Total households | 501,665 | -3.5% |
| Average People per Household | 2 | -20.7% |
| Family Households | 361,664 | -4.1% |
| Non-Family Households | 140,001 | -2.0% |
Family Households 72.09%
Non-Family Households 27.91%
| Y-o-Y Change | ||
| Households with Children | 155,263 | -5.2% |
| Households without Children | 346,402 | -2.7% |
Households with Children 30.95%
Households without Children 69.05%
What are the median and average incomes in Suffolk County?
The average annual household income in Suffolk County is $174,170, while the median household income sits at $128,844 per year. Residents aged 25 to 44 earn $150,922, while those between 45 and 64 years old have a median wage of $152,841. In contrast, people younger than 25 and those older than 65 earn less, at $68,674 and $85,557, respectively.
| Y-o-Y Change | ||
| Average Household Income | $174,170 | 6.2% |
| Median Household Income | $128,844 | 5.5% |
| People below Poverty Level | 89,182 | -8.6% |
| People above Poverty Level | 1,342,529 | -5.1% |
How many homeowners and renters are there in Suffolk County?
There are 568,657 housing units in Suffolk County, and the median year in which these properties were built is 1970. Of the 501,665 occupied housing units in Suffolk County, 82.22% are owner-occupied, while 17.78% have renters living in them.
Meanwhile, properties bought with mortgages account for 62.9% of the units, and the median value of a home with a mortgage is $607,600. In general, housing costs reach $2,432 per month in Suffolk County.
| Y-o-Y Change | ||
| Housing Units | 568,657 | -3.4% |
| Median Year Built | 1970 | -0.1% |
| Built in 1939 or Earlier | 53,564 | 0.7% |
| Built between 1940 and 1949 | 27,252 | -4.3% |
| Built between 1950 and 1959 | 100,451 | -4.4% |
| Built between 1960 and 1969 | 111,019 | -5.3% |
| Built between 1970 and 1979 | 100,110 | -4.5% |
| Built between 1980 and 1989 | 57,981 | -5.2% |
| Built between 1990 and 1999 | 49,784 | -5.7% |
| Built between 2000 and 2009 | 45,362 | 0.1% |
| Built between 2010 and 2019 | 20,637 | 9.9% |
| Built in 2020 or Later | 2,497 | 71.5% |
| Y-o-Y Change | ||
| Occupied Housing Units | 501,665 | -3.5% |
| Owner Occupied | 412,445 | -3.1% |
| Renter Occupied | 89,220 | -5.3% |
Owner Occupied 82.22%
Renter Occupied 17.78%
| Y-o-Y Change | ||
| With Mortgage | 259,416 | -3.6% |
| Without Mortgage | 153,029 | -2.2% |
| Median Value with Mortgage | $607,600 | 7.8% |
| Median Value without Mortgage | $593,600 | 10.2% |
| Median Housing Costs per Month | $2,432 | 3.8% |
With Mortgage 62.9%
Without Mortgage 37.1%
What is the level of education in Suffolk County?
Approximately 29.5% of the population in Suffolk County holds a high school degree (that's 343,839 residents), while 18.07% have attained a college certificate (210,660 locals) and 21.67% have a bachelor's degree (252,615 people).
| Y-o-Y Change | ||
| No High School | 46,980 | -17.9% |
| Some High School | 343,839 | -8.6% |
| Some College | 210,660 | -25.5% |
| Associate Degree | 111,482 | -3.9% |
| Bachelor's Degree | 252,615 | -1.3% |
| Graduate Degree | 199,937 | 1.3% |
No High School 4.03%
Some High School 29.5%
Some College 18.07%
Associate Degree 9.57%
Bachelor's Degree 21.67%
Graduate Degree 17.15%
What is the marital status of Suffolk County residents?
A total of 405,705 people in Suffolk County have never been married (which represents 32.7% of the total population), while 642,383 of them are wedded (51.78%). Separated and divorced residents are in smaller numbers, at 16,741 (1.35%) and 104,992 (8.46%), respectively.
| Y-o-Y Change | ||
| Never Married | 405,705 | -6.9% |
| Married | 642,383 | -4.0% |
| Separated | 16,741 | -11.0% |
| Widowed | 70,764 | -5.8% |
| Divorced | 104,992 | -5.7% |
Never Married 32.7%
Married 51.78%
Separated 1.35%
Widowed 5.7%
Divorced 8.46%
What are the most common means of transportation in Suffolk County?
The top three means of transportation people in Suffolk County use to get to work are: car, railroad and walking. A total of 599,761 residents commute by car, 26,949 prefer going to work by railroad and 9,650 by walking
| Y-o-Y Change | ||
| Car | 599,761 | -6.5% |
| Bus or TrolleyBus | 3,852 | -32.0% |
| Railroad | 26,949 | -8.0% |
| Ferryboat | 778 | 12.6% |
| Bicycle | 1,437 | 11.0% |
| Motorcycle | 161 | -26.1% |
| TaxiCab | 2,958 | -33.3% |
| Walk | 9,650 | -4.3% |
What is the median and average household income in Suffolk County by zipcode?
| ZipCode | Population | Number of Households | Median Income | Average Income |
|---|---|---|---|---|
| 06390 | 53 | 17 | $51,964 | $85,400 |
| 11701 | 28,174 | 9,033 | $110,639 | $143,569 |
| 11702 | 14,002 | 5,470 | $136,711 | $171,310 |
| 11705 | 8,256 | 2,948 | $161,214 | $182,774 |
| 11706 | 68,648 | 19,324 | $115,112 | $135,932 |
| 11713 | 9,236 | 3,136 | $111,786 | $142,411 |
| 11715 | 3,796 | 1,650 | $157,905 | $154,609 |
| 11716 | 9,750 | 3,359 | $120,344 | $139,984 |
| 11703 | 17,205 | 5,516 | $130,140 | $138,457 |
| 11704 | 40,285 | 12,924 | $127,034 | $149,694 |
Methodology & Disclaimers
Demographic data shown in this section was gathered from the latest U.S. Census Bureau release, the 2023 American Community Survey. The information is updated yearly, as soon as new data is made available by the US Census Bureau.
No representation, guarantee or warranty is made as to the accuracy or completeness of information modified or aggregated for specific neighborhoods and/or zip codes.