
Cottleville township
- County:
- St. Charles County
- County Seat:
- No
- Area (mi²):
- 18.304
- State:
- Missouri
Cottleville township is located in St. Charles County, Missouri. Cottleville township has a 2025 population of 25,619. Cottleville township is currently declining at a rate of 0% annually and its population has decreased by 0% since the most recent census, which recorded a population of 0 in 2020.
The average household income in Cottleville township is $149,162 with a poverty rate of 3.27%. The median age in Cottleville township is 41.8 years: 41.5 years for males, and 42 years for females.