City
O'Fallon, MO
St. Charles County, Missouri · Population 93,801 · 2 ZIP codes
Population
93,801
Safety Score
50
50
Average
Livability
50
50
Average
Median Home Price
N/A
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About O'Fallon
O'Fallon is a city located in St. Charles County, Missouri. With a population of 93,801, it spans 2 ZIP codes.