Lake St. Louis
In St. Charles County, Missouri — population 17,186 as of 2020.
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Today
83°F
Areas Of Fog then Mostly Cloudy8% precip
Tonight
66°F
Partly Cloudy4% precip
Saturday
90°F
Mostly Sunny4% precip
Saturday Night
67°F
Partly Cloudy3% precip
In and around Lake St. Louis
See & do
- American Poolplayers Association
- Bent Oak Apartments
- Boulevard Park
- Club Fitness
- Heritage of Hawk Ridge Golf
Eat, drink & stay
- Americas Best Value Inn Lake St. Louis
- Andy's Frozen Custard
- Bayview Holdings HMC
- Arby's
- Days Inn-lake St Louis
Shops & services
+165 more on the mapMusicians & bands near Lake St. Louis →
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Lake St. Louis by the numbers
Population
17,186Population figure, 2020
Households & income
- Area
- 8.54 sq mi (22.12 km²), 0.81 sq mi water
- Median age
- 42.7
- Households
- 7,351
- Persons per household
- 2.5
- Median household income
- $125,693
- Median house value
- $405,900
Municipal office
- Office
- CITY ADMINISTRATOR
- Address
- 200 CIVIC CENTER DR, LAKE ST LOUIS, MO 63367