
Crystal Lake Park
- County:
- St. Louis County
- County Seat:
- No
- Area (mi²):
- 0.097
- State:
- Missouri
Crystal Lake Park is a city located in St. Louis County, Missouri. Crystal Lake Park has a 2025 population of 497. Crystal Lake Park is currently declining at a rate of -0.4% annually and its population has decreased by -2.36% since the most recent census, which recorded a population of 509 in 2020.
The average household income in Crystal Lake Park is $196,095 with a poverty rate of 1.48%. The median age in Crystal Lake Park is 50.6 years: 48.1 years for males, and 57.3 years for females.