Distance between O'Fallon and Mason City
Distance from O'Fallon, MO to Mason City, IA is 327 miles / 527 kilometers.
Map showing the distance from O'Fallon to Mason City
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Air distance: | miles km |
O'Fallon, MO
| City: | O'Fallon, MO |
| Country: | United States |
Mason City, IA
| City: | Mason City, IA |
| Country: | United States |
Time difference between O'Fallon and Mason City
There is no time difference between O'Fallon and Mason City. Current local time in O'Fallon and Mason City is 17:03 CST (2025-01-23)