O'Fallon, Illinois

O'Fallon, Illinois
City
The Illinois Central Railroad Downtown Caboose
The Illinois Central Railroad Downtown Caboose
Flag of O'Fallon, Illinois
Flag
Official seal of O'Fallon, Illinois
Seal
Official logo of O'Fallon, Illinois
Nickname: 
"O-Town"
Location of O'Fallon in St. Clair County, Illinois.
Location of O'Fallon in St. Clair County, Illinois.
Coordinates: 38°35′51″N 89°54′37″W / 38.59750°N 89.91028°W / 38.59750; -89.91028!-- Area/postal codes and others -->
CountryUnited States
StateIllinois
CountySt. Clair
TownshipO'Fallon
Government
 • TypeHome rule[1]
Area
[2]
 • Total
15.70 sq mi (40.67 km2)
 • Land15.59 sq mi (40.39 km2)
 • Water0.11 sq mi (0.29 km2)
Elevation
[3]
538 ft (164 m)
Population
 (2020)
 • Total
32,289
 • Density2,070.6/sq mi (799.48/km2)
Time zoneUTC−6 (CST)
 • Summer (DST)UTC−5 (CDT)
ZIP code
62269
Area code618
FIPS code17-55249
GNIS feature ID2395302[3]
Websiteofallon.org

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.

History

O'Fallon, 1938

Founded in 1854, O'Fallon's namesake comes from Colonel John O'Fallon who was a wealthy gentleman from St. Louis. In downtown O'Fallon, a Baltimore and Ohio Railroad railroad depot was built, which helped put O'Fallon on the map. City lots were platted and sold at a public auction on May 18, 1854. A post office was established the following year and the city began attracting German settlers looking for fertile farming land. On January 27, 1874, O'Fallon was incorporated as a village. On March 14, 1905, the citizens voted for a change to the city form of government. Since its founding, O'Fallon has gained population every decennial census year except 1930, when the census showed a net loss of six residents.

Tornado damage, 2006

The city center is approximately two miles east of the intersection of Interstate 64 and U.S. Route 50. Suburban growth in O'Fallon expanded considerably during the 1980s and following the expansion of Interstate 64 in the 1990s. Subdivisions include Thornbury Hill, Nolin Creek Estates, Fairwood Hills, Deer Creek, Forest Hills, and Fairwood East. O'Fallon Township High School's main campus at 600 South Smiley Street has undergone numerous additions over the past decades to ease overcrowding, including the creation of the separate 9th Grade Milburn Campus.

O'Fallon's city seal was designed in 1974 by Michael Donovan, an OTHS freshman, during a contest held by the O'Fallon Junior Woman's Club to create a city flag. In May 1975, the design was finalized by Louis Bradshaw and was then adopted by the city as its official flag. According to the 2004 publication by the O'Fallon Historical Society, O'Fallon Sesquicentennial History:[4]

"The design is yellow gold on a blue background—the colors of the high school. The pick and shovel represent the coal mines that were so important to O'Fallon's economy for over 100 years. The locomotive represents the railroad to which O'Fallon owes its existence. The planes represent Scott Air Force Base where many in O'Fallon find employment—both military and civil service."

Events

Geography

O'Fallon is located at 38°35′N 89°54′W / 38.583°N 89.900°W / 38.583; -89.900 (38.591549, −89.912000).[5] 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.[6]

Demographics

Historical population
CensusPop.Note%±
18701,117—
1880921−17.5%
1890865−6.1%
19001,26746.5%
19102,01859.3%
19202,37917.9%
19302,373−0.3%
19402,4071.4%
19503,02225.6%
19604,01833.0%
19707,26880.9%
198012,17367.5%
199016,07332.0%
200021,91036.3%
201028,28129.1%
202032,28914.2%
U.S. Decennial Census[7]
2018 Estimate[8]

2020 census

As of the 2020 census, O'Fallon had a population of 32,289 and 7,114 families living in the city; the population density was 2,959/sq mi (1,142/km2).[9][10]

The median age was 38.0 years. 26.1% of residents were under the age of 18 and 14.1% of residents were 65 years of age or older. For every 100 females there were 93.8 males, and for every 100 females age 18 and over there were 89.1 males age 18 and over.[9][11]

99.6% of residents lived in urban areas, while 0.4% lived in rural areas.[12]

There were 12,559 households in O'Fallon, of which 36.0% had children under the age of 18 living in them. Of all households, 53.6% were married-couple households, 15.0% were households with a male householder and no spouse or partner present, and 26.5% were households with a female householder and no spouse or partner present. About 26.1% of all households were made up of individuals and 11.1% had someone living alone who was 65 years of age or older.[9]

There were 13,225 housing units at an average density of 1,158/sq mi (447/km2), of which 5.0% were vacant. The homeowner vacancy rate was 1.4% and the rental vacancy rate was 6.7%.[9][10]

Racial composition as of the 2020 census[11]
Race Number Percent
White 22,792 70.6%
Black or African American 5,288 16.4%
American Indian and Alaska Native 72 0.2%
Asian 887 2.7%
Native Hawaiian and Other Pacific Islander 32 0.1%
Some other race 466 1.4%
Two or more races 2,752 8.5%
Hispanic or Latino (of any race) 1,629 5.0%

Annual events

  • May - Memorial Day To Honor Those Who Gave their lives in service of the nation (O'Fallon Veterans Monument)[13]
  • November – Veterans Day Celebration at O'Fallon Veterans Monument; Veterans Day Parade - largest in the area
  • November, the Saturday after Thanksgiving - Lighted Holiday Parade

Parks and recreation

Rock Springs Nature Park
Public Library

O'Fallon Parks and Recreation

  • Family Sports Park
  • Hesse Park
  • Katy Cavin's Community Center
  • O'Fallon Community Park
  • O'Fallon Memorial Pool
  • Rock Springs Nature Park
    • Nature center
    • Jogging/cycling paths
    • Nature trails
    • Natural prairie
    • Dog Park
  • MCT Goshen Trailhead
  • St. Clair Recreation Complex
  • St. Ellen Mine Park
  • Thoman Park
  • Veteran's Monument

Library

  • O'Fallon Public Library

Registered historic places

Schools

Delores Moye School
  • O'Fallon Community Consolidated School District #90
    • Delores Moye Elementary School
    • Estelle Kampmeyer Elementary School
    • J. E. Hinchcliffe Sr. Elementary School
    • Laverna Evans Elementary School
    • Marie Schaefer Elementary School
    • Amelia V. Carriel Junior High School
    • Edward A. Fulton Junior High School
  • O'Fallon Central School District #104
  • O'Fallon Township High School District No. 203

Private schools

  • Discovery School
  • St. Clare Catholic School
  • First Baptist Academy

Notable people

References

  1. ^ "Form of Government City of O'Fallon". City of O'Fallon, IL. Retrieved December 13, 2019.
  2. ^ "2020 U.S. Gazetteer Files". United States Census Bureau. Retrieved March 15, 2022.
  3. ^ a b U.S. Geological Survey Geographic Names Information System: O'Fallon, Illinois
  4. ^ O'Fallon Historical Society (2004). O'Fallon Sesquicentennial History.
  5. ^ "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. February 12, 2011. Retrieved April 23, 2011.
  6. ^ "2010 Census U.S. Gazetteer Files for Places – Illinois". United States Census. Retrieved October 13, 2012.
  7. ^ United States Census Bureau. "Census of Population and Housing". Retrieved May 13, 2015.
  8. ^ "Population Estimates". United States Census Bureau. Retrieved June 8, 2018.
  9. ^ a b c d "2020 Decennial Census Demographic Profile (DP1)". United States Census Bureau. 2021. Retrieved April 8, 2026.
  10. ^ a b "Explore Census Data". data.census.gov. Retrieved January 23, 2024.
  11. ^ a b "2020 Decennial Census Redistricting Data (Public Law 94-171)". United States Census Bureau. 2021. Retrieved April 8, 2026.
  12. ^ "2020 Decennial Census Demographic and Housing Characteristics (DHC)". United States Census Bureau. 2023. Retrieved April 8, 2026.
  13. ^ "Calendar | City of OFallon, IL".
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