
Hadley township
- County:
- St. Louis County
- County Seat:
- No
- Area (mi²):
- 5.484
- State:
- Missouri
Hadley township is located in St. Louis County, Missouri. Hadley township has a 2025 population of 34,908. Hadley 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 Hadley township is $136,556 with a poverty rate of 12.4%. The median age in Hadley township is 29.1 years: 30.1 years for males, and 28.6 years for females.