
Commack
- County:
- Suffolk County
- County Seat:
- No
- Area (mi²):
- 12.248
- State:
- New York
Commack is a CDP located in Suffolk County, New York. Commack has a 2025 population of 35,682. Commack is currently declining at a rate of -0.08% annually and its population has decreased by -3.31% since the most recent census, which recorded a population of 36,903 in 2020.
The average household income in Commack is $204,843 with a poverty rate of 3.4%. The median age in Commack is 43.7 years: 42.2 years for males, and 44.9 years for females.