Oakville, Missouri

Oakville, Missouri
Bee Tree County Park, Oakville, Missouri
Location of Oakville, Missouri
Coordinates: 38°26′52″N 90°19′12″W / 38.44778°N 90.32000°W / 38.44778; -90.32000
Country United States
State Missouri
CountySt. Louis
TownshipsOakville, Tesson Ferry
Area
 • Total
17.67 sq mi (45.77 km2)
 • Land15.88 sq mi (41.12 km2)
 • Water1.80 sq mi (4.65 km2)
Elevation
564 ft (172 m)
Population
 (2020)
 • Total
36,301
 • Density2,286.3/sq mi (882.74/km2)
Time zoneUTC-6 (Central (CST))
 • Summer (DST)UTC-5 (CDT)
ZIP code
63129
Area code(s)314/557
FIPS code29-53876
GNIS feature ID2393166

Oakville is an unincorporated community and census-designated place (CDP) in south St. Louis County, Missouri, United States. The population was 36,301 at the 2020 census. Oakville is 18 miles south of the city of St. Louis and borders the Mississippi and Meramec rivers; the area is part of "South County" (south St. Louis County).