Location of O'Fallon, Illinois

O'Fallon is located at:

WikiMiniAtlas

38°35′30″N 89°54′43″W / 38.59167°N 89.91194°W / 38.59167; -89.91194 (38.591549, −89.912000).[3] O'Fallon is:

According to the 2010 census, the city has a total area of 14.48 square miles (37.5 km2), of which 14.35 square miles (37.2 km2) (or 99.10%) is land and 0.12 square miles (0.31 km2) (or 0.83%) is water.

The city center is located approximately two miles from the intersection of Interstate 64 and U.S. Route 50.

 

*Information taken from https://en.wikipedia.org/wiki/O'Fallon,_Illinois