Lake St. Louis

City in St. Charles County, Missouri

View of Lake St. Louis, Missouri
Photo: Roastedbeanz1 · CC BY-SA 4.0

Lake St. Louis is a city in St. Charles County, Missouri, with 16,707 residents (2020 Census). It sits at 564 ft (172 m) above sea level. The nearest town is O'Fallon, 3.4 miles E.

About Lake St. Louis

The City of Lake St. Louis is a planned community and suburb of greater St. Louis, situated around two lakes between Interstate 70 and Interstate 64 in western St. Charles County, Missouri, United States. The population was 16,707 as of the 2020 US Census. Lake St. Louis is 43 miles (69 km) from the city of St. Louis.

Text: Wikipedia · CC BY-SA 4.0

Lake St. Louis weather: 7-day forecast

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Source: National Weather Service (NOAA).

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Living in Lake St. Louis

Median household income
$125,693
Median home value
$405,900
Median rent
$1,588/mo
Median age
42.7
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Map of Lake St. Louis

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Lake St. Louis Street View

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Lake St. Louis, MO population

Lake St. Louis had 16,707 residents in the 2020 Census.

2020 Census16,707
Density1,950 per sq mi (753 per km²)

Source: U.S. Census Bureau, Decennial Census.

Lake St. Louis at a glance

StateMissouri (MO)
CountySt. Charles County
TypeCity
Population16,707 (2020)
Land area8.57 sq mi (22.2 km²)
Water area0.81 sq mi (2.10 km²)
Elevation564 ft (172 m)
Coordinates38.7799° N, 90.7856° W
ZIP code63367
Official websitelakesaintlouis.com
Census code (GEOID)2940043

Sources: U.S. Census Bureau (Gazetteer, ZCTA), USGS GNIS, Wikidata.

Towns near Lake St. Louis

Straight-line distance between town centers.

Frequently asked questions about Lake St. Louis

What county is Lake St. Louis in?

Lake St. Louis is in St. Charles County, Missouri.

What is the population of Lake St. Louis, MO?

16,707 people lived in Lake St. Louis at the 2020 Census.

What is the ZIP code of Lake St. Louis, MO?

The ZIP code of Lake St. Louis is 63367.

What is the elevation of Lake St. Louis?

564 feet (172 m) above sea level.

What towns are near Lake St. Louis?

O'Fallon (3.4 mi), Josephville (3.5 mi), Dardenne Prairie (4.6 mi), Wentzville (5.1 mi), St. Paul (5.4 mi).

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