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O'Fallon
Sign in to saveAlso known as O'Fallon, Illinois, O'Fallon, IL
city in St. Clair County, Illinois, United States
Key facts
- Country
- United States
- State
- Illinois
- County
- St. Clair
- Township
- O'Fallon
- Type
- Home rule
- Total
- 15.70 sq mi (40.67 km )
- Land
- 15.59 sq mi (40.39 km )
- Water
- 0.11 sq mi (0.29 km )
- Elevation
- 538 ft (164 m)
- Density
- 2,070.6/sq mi (799.48/km )
- Time zone
- UTC−6 ( CST )
- Summer dst
- UTC−5 ( CDT )
- Fips code
- 17-55249
- Website
- ofallon .org
via Wikipedia infobox
Wikidata facts
- Instance of
- city in the United States
- Official name
- O'Fallon
- Country
- United States
- Located in
- St. Clair County
- Population
- 32289
- Area
- 37.491847
- Elevation
- 164
- Official website
- www.ofallon.org
- Image
- Caboose.JPG
- Households
- 11493
- Dialing code
- 618
Show 8 more facts
Sources (9)
via Wikidata · CC0
~6 min read
Encyclopedic overview
O'Fallon is a city in St. Clair County, Illinois, United States. The 2020 census listed the population at 32,289. The city is the second largest city in the Metro East region and Southern Illinois. It sits 5 miles (8.0 km) from Scott Air Force Base and 18 miles (29 km) from Downtown St. Louis.
Like its namesake in St. Charles County, Missouri, O'Fallon is part of the St. Louis metro area. This makes O'Fallon (along with the two Troys in Illinois and Missouri) one of the few pairs of like-named municipalities to be part of the same metro region.
Excerpted from Wikipedia’s “O'Fallon” article, available under the CC BY-SA 4.0 licence.
Gallery (12)
On the map
2 mapped locations