
Appleton City
- County:
- St. Clair County
- County Seat:
- No
- Area (mi²):
- 1.148
- State:
- Missouri
Appleton City is a city located in St. Clair County, Missouri. Appleton City has a 2025 population of 1,105. Appleton City is currently growing at a rate of 1.28% annually and its population has increased by 6.87% since the most recent census, which recorded a population of 1,034 in 2020.
The average household income in Appleton City is $54,583 with a poverty rate of 14.19%. The median age in Appleton City is 39.5 years: 30.9 years for males, and 43.9 years for females.