
Lynbrook
- County:
- Nassau County
- County Seat:
- No
- Area (mi²):
- 2.013
- State:
- New York
Lynbrook is a village located in Nassau County, New York. Lynbrook has a 2025 population of 19,878. Lynbrook is currently declining at a rate of -0.48% annually and its population has decreased by -2.37% since the most recent census, which recorded a population of 20,360 in 2020.
The average household income in Lynbrook is $170,605 with a poverty rate of 7.22%. The median age in Lynbrook is 42.2 years: 39.9 years for males, and 43.8 years for females.