O'Fallon, Missouri, United States

🇺🇸 O'Fallon is a city located along Interstates 64 and 70 between Lake St. Louis and St. Peters in St. Charles County, Missouri, United States. It is part of the St. Louis metropolitan statistical area. It is the largest suburb of St. Louis, as well as the largest municipality in St. Charles County and the seventh-largest in Missouri. O'Fallon's namesake in St. Clair County, Illinois, is also part of the St. Louis metropolitan statistical area. The two O'Fallons are one of the few pairs of same-named municipalities to be part of the same MSA.

History O'Fallon was founded in 1856 by Nicholas Krekel. The community was named by Krekel's older brother, Judge Arnold Krekel, after John O'Fallon, the president of the North Missouri Railroad. A post office called O'Fallon has been in operation since 1859 with its first postmaster being Nicholas Krekel. The St. Mary's Institute of O'Fallon was listed on the National Register of Historic Places in 2007.

In 2006, Money magazine named O'Fallon 39th in its "Best 100 Places to Live". The magazine also ranked O'Fallon 68th out of 100 in 2008, 26th out of 100 in 2010, and 42nd out of 100 in 2017.

Geography According to the United States Census Bureau, the city has a total area of 29.20 square miles (75.63 km²), of which 29.19 square miles (75.60 km²) are land and 0.01 square miles (0.03 km²) is covered by water.

Demographics The 2020 United States census counted 91,316 people, 31,681 households, and 23,754 families in O'Fallon. The population density was 2,994.0 per square mile (1,155.9/km²). There were 32,740 housing units at an average density of 1,073.4 per square mile (414.4/km²). The racial makeup (including Hispanics in the racial counts) was 82.28% (75,133) white, 5.06% (4,620) black or African-American, 0.22% (205) Native American, 4.06% (3,704) Asian, 0.1% (88) Pacific Islander, 1.46% (1,334) from other races, and 6.82% (6,232) from two or more races. Hispanic or Latino of any race was 4.0% (3,639) of the population.

Of the 31,681 households, 37.5% had children under the age of 18; 60.5% were married couples living together; 21.9% had a female householder with no husband present. Of all households, 19.9% consisted of individuals and 9.3% had someone living alone who was 65 years of age or older. The average household size was 2.8 and the average family size was 3.2.

25.4% of the population was under the age of 18, 6.8% from 18 to 24, 26.5% from 25 to 44, 26.2% from 45 to 64, and 11.6% who were 65 years of age or older. The median age was 37.5 years. For every 100 females, the population had 97.3 males. For every 100 females ages 18 and older, there were 93.2 males.

The 2016-2020 5-year American Community Survey estimates show that the median household income was $92,498 (with a margin of error of +/- $3,539) and the median family income was $106,419 (+/- $3,781). Males had a median income of $56,446 (+/- $2,450) versus $36,747 (+/- $2,327) for females. The median income for those above 16 years old was $45,900 (+/- $2,496). Approximately, 2.6% of families and 4.6% of the population were below the poverty line, including 5.1% of those under the age of 18 and 3.9% of those ages 65 or over.

Economy Mastercard has a major presence in O'Fallon. Venture Stores was headquartered and maintained a distribution centre in O'Fallon, until its dissolution. The buildings are now occupied by True Manufacturing. Air Evac Lifeteam, a medical helicopter service for the rural areas of the Ozarks, moved its headquarters to O'Fallon in 2015.

Parks and recreation • Civic Park, a 20-acre (8.1 ha) park, it features Alligator's Creek Aquatic Center, a bandstand and amphitheater. • Dames Park is a 59-acre (24 ha) sports park with three football fields and a fitness course. • Fort Zumwalt Park is a 47.5-acre (19.2 ha) park featuring a fishing lake, a disc golf course, playgrounds, and historic Fort Zumwalt. • Knaust Park is a 6-acre (24,000 m²) park with a playground and walking path. • O'Fallon Sports Park is a 95-acre (38 ha) soccer complex with 12 fields, playgrounds, and concessions. It is also home to the Renaud Spirit Center. • Ozzie Smith Sports Complex is a 76-acre (31 ha) baseball/softball complex with seven diamonds, adjacent to CarShield Field. • Westhoff Park is a 65-acre (26 ha) park featuring baseball diamonds, sand volleyball courts, horseshoe pits, basketball courts, tennis and handball courts, and a skate park.

Sport O'Fallon was the home of the River City Rascals independent Frontier League baseball team. The Rascals played at CarShield Field in O'Fallon, which was built in 1999. It is located on Tom Ginnever Boulevard and T.R. Hughes Boulevard near downtown. The organization ceased operations after the 2019 season. The O'Fallon Hoots and the CarShield Collegiate League now play at the stadium.

Education and libraries O'Fallon is served mostly by the Fort Zumwalt School District. The westernmost part is served by the Wentzville R-IV School District. The south to south-eastern part of the city is served by the Francis Howell R-III School District.

Public schools within the O'Fallon city limits are as follows: • Fort Zumwalt district: • Dardenne, Emge, Forest Park, Mt. Hope, J. L. Mudd, Pheasant point, Progress South, Rock Creek, Twin Chimneys, and Westhof elementary schools • North Middle School, South Middle School, Fort Zumwalt West Middle School • Fort Zumwalt North High School, Fort Zumwalt West High School, Hope High School • Fort Zumwalt South High School is just outside of the city limits. Ostmann Elementary School is in adjacent Dardenne Prairie. • Wentzville district: • Crossroads Elementary School and Discovery Ridge Elementary School • Frontier Middle School • Liberty High School • Francis Howell district: • John Weldon Elementary School and Francis Howell Middle School are outside of the city limits.

Private schools: • St. Dominic High School is a private Catholic school located in O'Fallon; Christian High School is a nondenominational Christian secondary school also located in O'Fallon. • Living Word Christian High School is in O'Fallon. • Assumpton Catholic School is in O'Fallon. • First Baptist Christan Academy is in O'Fallon.

Satellite campuses of Webster University and Lindenwood University are located in O'Fallon.

O'Fallon is served by the St. Charles City-County Library system, which has three branches in the area, two standard (Deer Run and Middendorf-Kredell) and one "express" location (Library Express at Winghaven).

Infrastructure While the City is within the jurisdiction of multiple agencies, fire protection is mostly provided by the O'Fallon Fire Protection District, which in 2007 became the first internationally accredited fire agency in Missouri. The award was made by the Center for Public Safety Excellence's Commission on Fire Accreditation International, which has approved accreditation status for only 120 fire agencies worldwide.

The western portion of the city is served by the Wentzville Fire Protection District. The eastern portion of the city is served by Central County Fire Rescue. The southern portion of the city is served by the Cottleville Fire Protection District. The far south-western portion of the city is served by the New Melle Fire District. An extremely small portion of the city is served by the Lake Saint Louis Fire District. The city also features The Shops at Laura Hills, a small shopping complex on Highway K. The complex features Target, Petsmart, Famous Footwear, Rally House, Bath and Body Works, Chick Fil-A, and a White Castle.