O'Fallon, Missouri is the 386th largest city in the United States as of 2015.
O'Fallon, Missouri is a city.
O'Fallon, Missouri is as large as it has ever been. In 2015 O'Fallon had its largest population ever.
O'Fallon, Missouri is growing extremely quickly. It is growing faster than 90% of similarly sized cities since 2000.
|384||Redwood City, California||13.0%|
|390||Trenton, New Jersey||-1.3%|
|391||Santa Fe, New Mexico||32.8%|
|Year||Population||Rank in US|