
New Suffolk
- County:
- Suffolk County
- County Seat:
- No
- Area (mi²):
- 0.556
- State:
- New York
New Suffolk is a CDP located in Suffolk County, New York. New Suffolk has a 2025 population of 294. New Suffolk is currently declining at a rate of -1.34% annually and its population has decreased by -16.71% since the most recent census, which recorded a population of 353 in 2020.
The average household income in New Suffolk is $139,252 with a poverty rate of 6.48%. The median age in New Suffolk is 60.2 years: 63.1 years for males, and 59.5 years for females.