
Spanish Lake township
- County:
- St. Louis County
- County Seat:
- No
- Area (mi²):
- 20.968
- State:
- Missouri
Spanish Lake township is located in St. Louis County, Missouri. Spanish Lake township has a 2025 population of 35,273. Spanish Lake 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 Spanish Lake township is $84,941 with a poverty rate of 11.11%. The median age in Spanish Lake township is 39.8 years: 36 years for males, and 40.8 years for females.