
Crystal Lake
- County Seat:
- No
- Area (mi²):
- 8.919
- State:
- Connecticut
Crystal Lake is a CDP located in . Crystal Lake has a 2025 population of 2,114. Crystal Lake is currently growing at a rate of 0.57% annually but its population has decreased by -17.65% since the most recent census, which recorded a population of 2,567 in 2020.
The average household income in Crystal Lake is $143,895 with a poverty rate of 1.48%. The median age in Crystal Lake is 51.1 years: 56.5 years for males, and 48.5 years for females.