In 2019, Suffolk County, NY had a population of 1.48M people with a median age of 41.8 and a median household income of $106,228. Between 2018 and 2019 the population of Suffolk County, NY declined from 1.48M to 1.48M, a −0.303% decrease and its median household income grew from $100,468 to $106,228, a 5.73% increase.
The 5 largest ethnic groups in Suffolk County, NY are White (Non-Hispanic) (66.3%), White (Hispanic) (13.4%), Black or African American (Non-Hispanic) (7.17%), Other (Hispanic) (5.21%), and Asian (Non-Hispanic) (3.99%). 22.8% of the households in Suffolk County, NY speak a non-English language at home as their primary language.
93.8% of the residents in Suffolk County, NY are U.S. citizens.
The largest universities in Suffolk County, NY are Stony Brook University (7,961 degrees awarded in 2020), Suffolk County Community College (3,403 degrees), and Farmingdale State College (2,238 degrees).
In 2019, the median property value in Suffolk County, NY was $430,500, and the homeownership rate was 80.9%. Most people in Suffolk County, NY drove alone to work, and the average commute time was 32.3 minutes. The average car ownership in Suffolk County, NY was 2 cars per household.