
Hewlett
- County:
- Nassau County
- County Seat:
- No
- Area (mi²):
- 0.881
- State:
- New York
Hewlett is a CDP located in Nassau County, New York. Hewlett has a 2025 population of 7,783. Hewlett is currently growing at a rate of 0.84% annually and its population has increased by 10.18% since the most recent census, which recorded a population of 7,064 in 2020.
The average household income in Hewlett is $172,460 with a poverty rate of 5.86%. The median age in Hewlett is 40.6 years: 40.9 years for males, and 39.7 years for females.