
Plainedge
- County:
- Nassau County
- County Seat:
- No
- Area (mi²):
- 1.404
- State:
- New York
Plainedge is a CDP located in Nassau County, New York. Plainedge has a 2025 population of 8,999. Plainedge is currently growing at a rate of 0.13% annually and its population has increased by 1.51% since the most recent census, which recorded a population of 8,865 in 2020.
The average household income in Plainedge is $173,069 with a poverty rate of 4.79%. The median age in Plainedge is 40.7 years: 38.1 years for males, and 42.6 years for females.