ZIP CODE 63366 O'FALLON MO

Sources: US Census Bureau, US Postal Service, GreatData.com - Apr, 2025

City, StateO'Fallon, MO

Alternate Cities

Cottleville, Dardenne Pr, Dardenne Prairie, Saint Paul, Saint Peters

CountySaint Charles

Latitude & Longitude38.857457 -90.725305

Area Code636

Time Zone / Daylight Saving-6 / Y

Population53,861

Population Density879 (people/ sq. mi.)

Median Home Value$283,900 (chart below)

Median Household Income$98,237 (chart below)

Avg. Worker Earnings$51,750

Poverty Estimate6%

Gender

Median Age38

Avg / Household3

Businesses1,174

County FIPs183

State FIPs29

MSA Code7040

ZIP Class-