City profile · United States · North America
O'Fallon
City population
85,040
#424
in United States
#7
in Missouri
#6,788
worldwide
38.811, -90.700 · 1,182 km from Washington
About O'Fallon
O'Fallon is a city in Missouri, United States with a population of 85,040. It is the 424th largest of the 3,112 cities of 15,000 or more listed in United States, and the 6,788th largest worldwide. It lies 1,182 km from Washington.
Key Facts
Country
Region
Rank in region
#7of 54
Elevation
165 m
Time zone
America/Chicago
Coordinates
38.811, -90.700
Record updated
2017-05-23
Entry edited, not measured
City population, GeoNames. GeoNames publishes no year for its population figures, so “record updated” is when the entry was last edited — not the date the population was measured.
Nearby Cities
All 3,112 in United StatesClosest listed cities by great-circle distance from the city centre.