St. Louis County Map

St. Louis County Missouri map showing cities, highways, rivers, county boundaries, parks, St. Louis Lambert International Airport, and surrounding counties.

St. Louis County map showing cities, highways, rivers, parks, airports, boundaries, and major transportation networks in Missouri.

About St. Louis County Map

The St. Louis County Map provides a detailed overview of one of Missouri’s most populous counties, highlighting major cities, towns, transportation routes, and natural features. This map displays important communities including Florissant, Chesterfield, Clayton, Kirkwood, University City, and Ferguson, along with county boundaries and neighboring counties.

Key transportation corridors such as Interstate 44, Interstate 64, Interstate 70, Interstate 270, and Interstate 255 are clearly marked, making the map useful for navigation, planning, and geographic reference. Natural features including the Mississippi River, Missouri River, Creve Coeur Lake, and several state parks are also shown. The map serves as a valuable resource for students, travelers, researchers, and anyone interested in the geography and infrastructure of St. Louis County, Missouri.

St. Louis County Map Quick Facts

FactDetails
Official NameSt. Louis County
StateMissouri
CountryUnited States of America
FoundedOctober 1, 1812
IncorporatedOrganized as a county in 1812
PopulationApproximately 1,000,000 residents
CountyClayton
Area523 sq mi (1,355 km²)
Time ZoneCentral Time Zone (CST UTC-6 / CDT UTC-5)
ZIP Codes630xx–631xx series
Area Code314, 557, 636
Known ForGateway region, business centers, historic communities, parks, and St. Louis Lambert International Airport
Major AirportSt. Louis Lambert International Airport
ClimateHumid Subtropical Climate with hot summers and cool winters
NicknameGateway County (unofficial)
Major HighwaysInterstate 44, Interstate 55, Interstate 64, Interstate 70, Interstate 170, Interstate 255, Interstate 270
Nearby BorderIllinois (across the Mississippi River)
Major AttractionsForest Park, St. Louis Zoo, Missouri Botanical Garden, Grant's Farm, Creve Coeur Lake, Castlewood State Park, Laumeier Sculpture Park
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St-louis County Map
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