O Fallon Missouri About
O Fallon Missouri has a zip code of 63366. The current date and time in O Fallon is April 30, 2024, 1:02 am and it has a population of 57,519 people. O Fallon Missouri lies at an elevation of 536 feet.
O Fallon Missouri has a zip code of 63366. The current date and time in O Fallon is April 30, 2024, 1:02 am and it has a population of 57,519 people. O Fallon Missouri lies at an elevation of 536 feet.