Northwoods
- County:
- St. Louis County
- County Seat:
- No
- Area (mi²):
- 0.698
- State:
- Missouri
Northwoods is a city located in St. Louis County, Missouri. Northwoods has a 2026 population of 3,592. Northwoods is currently declining at a rate of -0.14% annually and its population has decreased by -2.44% since the most recent census, which recorded a population of 3,682 in 2020.
The median household income in Northwoods is $45,330 with a poverty rate of 24.75%. The median age in Northwoods is 48.1 years: 44.6 years for males, and 55 years for females. For every 100 females there are 88.1 males.