O'Fallon

O'Fallon is a city that lies in Illinois, United States. The population stands at approximately 32,289. On the world map it falls within the Western Hemisphere, specifically at 38.600°, -89.915°. It covers about 40.9 km² of land area. At 789 people per km², the city shows an average residential density. Its latitude implies a climate characterised by warm summers and cool winters. Continue scrolling for population, climate, environmental and points-of-interest data drawn from public sources.

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