St. Louis County
- Population
- 200,123
- Area
- 6.25 sq mi (16.18 km²), 0.61 sq mi water
- Median age
- 41.2
- Households
- 87,115
- Persons per household
- 2.2
- Median household income
- $70,069
- Median house value
- $221,400
Demographics: 2020–2024 ACS
Overnight
57°F
Mostly Clear
Saturday
79°F
Mostly Sunny3% precip
Saturday Night
54°F
Mostly Clear3% precip
Sunday
77°F
Mostly Sunny