
Frontier township
- County:
- St. Charles County
- County Seat:
- No
- Area (mi²):
- 7.461
- State:
- Missouri
Frontier township is located in St. Charles County, Missouri. Frontier township has a 2025 population of 25,575. Frontier 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 Frontier township is $114,048 with a poverty rate of 4.71%. The median age in Frontier township is 38.2 years: 37.5 years for males, and 38.6 years for females.