History of O'Fallon, Missouri

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Our local O'Fallon sexual abuse lawyer, Reed Martens, has sponsored this article outlining the history of the town and things for visitors to do. We hope that whether you're a long-time resident or just visiting, you learn something new.

A Look Back: What Is O'Fallon Known For?

To understand O'Fallon, Missouri today, we need to take a look back on where it started. In 1856, O'Fallon was founded by Nicholas Krekel who was also the first postmaster of the community. It O'Fallon comes from John O'Fallon, the president of the North Missouri Railroad. Krekel's older brother had purchased land in the area, plotted a town, and even donated some of his property for a new railroad line.

In the early 1900s, thecity boasted about 600 residents. In 1912, O'Fallon was incorporated with Fred Jacoby being the first mayor. In 1939 the city built the first sanitary water and sewer system. St. Mary's Institute also helped fund this progress, and today they are the oldest corporation in operation in O'Fallon.

The city continued to grow, and by 1956 the population reached 1,357. The population continued to grow and would eventually put a strain on water, electrical and other public services like fire and police. By the mid-1990s, a new wave of infrastructure improvements was launched. Today, O'Fallon has expanded to about 30 square miles and as of the 2020 census had a population of 91,316.


The 2010 census recorded 79,234 residents with 28,234 households. The city had a racial makeup of 89.9% white, 4% African American, 3.2% Asian, and 2.7% Hispanic or Latino of any race. The median age was 34.3 years old, and almost 45% of houses had children under the age of 18 living with them.

Things To Do In O'Fallon

O'Fallon is located just outside of St. Louis and many residents commute to the city for work. In 2006, Money Magazine named O'Fallon #39 in its top '100 Places to Live'. The city also reached position #68 in 2008, #26 in 2010, and #42 in 2017. It also has a humid subtropical climate, which means that summers are hot and humid while winters are mostly moderately cold.

There are many parks and things to do in O'Fallon. This includes:

  • Civic Park
  • Dames Park
  • Fort Zumwalt Park
  • O'Fallon Hoots
  • Historic Heald Home
  • O'Fallon TheatreWorks
  • Shape of Community sculpture series

The City also has many festivals and activities that happen throughout the year. This includes:

  • Old-Fashioned Holiday Stroll
  • O'Day Park Events
  • Fall into the Arts
  • Food Truck Frenzy
  • Founders' Day
  • O'Fallon Jammin
  • Tree Lighting Ceremony
  • and more

No matter what you are looking to do, there is something for everyone! Continue reading about another suburban town, Lee's Summit.

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