O'Fallon (Illinois) is geographically located at latitude 38° 35' 24" North of the Equator and longitude 89° 54' 35" West of the Prime Meridian on the Map of World. The following locations related to it are represented by the the shortest path as the crow would fly between any two points and may not be nearest by road.
Sargent University Hall (Illinois) is about 458.3km. These are places of learning (school, college, university) located near O'Fallon (Illinois).
Hyde Park, Chicago is about 438.7km, Chicago Millennium Park is about 445.2km, Pulaski Park, Chicago is about 449.1km. These are parks, playgrounds, open fields or commons located near O'Fallon (Illinois).