Welcome to O'Fallon ...The city of O'Fallon is located in Saint Charles County<1>. While we don't have a date for the founding of O'Fallon, you might consider that their post office opened in 1859. From the Census Estimates for 2019, O'Fallon has a population of 88,595 people<2> (see below for details). O'Fallon is 590 feet [180 m] above sea level.<3>. Time Zone: O'Fallon lies in the Central Time Zone (CST/CDT) and observes daylight saving time Area Code for O'Fallon: 636 The ZIP codes for O'Fallon: 63366-63368<4> Population Details ...Taken from the 2019 Census Estimates, O'Fallon had an population of 88,595 people. This is an increase of 11.68% since the 2010 Census (or an increase of 91.89% since the 2000 Census). At the time of the 2010 Census, O'Fallon had a population of 79,329 people (or 21.93% of the total population of Saint Charles County). This makes O'Fallon the county's most populous community. The population of O'Fallon represents 1.32% of the population of Missouri (which has 5,988,927 people), making it the state's 7th most populous community. With a 2010 count of 79,329 people, the population of O'Fallon increased 71.82% from the 2000 Census (with a count of 46,169 people). More information can be found on the Census Page for O'Fallon. Communities Also Named O'Fallon ...Using our Gazetteer, we found that there are two Missouri communities named O'Fallon: This one is located in Saint Charles County and the other is located in Saint Louis County. For more information, see our Tidbits & Trivia Page for O'Fallon. Websites for O'Fallon ...Official Website: www.ofallon.mo.us/ Chamber of Commerce: www.ofallonmochamber.com/ Communities near O'Fallon ...We have created a list of 10 communities that are near O'Fallon.
To Help With Your Genealogy Research ...We have a couple of sections for those tracing their genealogy. We created a list of cemeteries that are in the area around O'Fallon. Our list includes the location of those cemeteries and we provide an overhead view. See our Cemetery List for O'Fallon. Using the information from an 1895 Atlas, we've created a list of communities that were in the area of O'Fallon. Our list includes information such as whether the 1895 community had a post office or railroad service. See our List of 1890's Communities around O'Fallon. We also have a detailed list of newspapers that have been published in the area around O'Fallon. Our list includes 6 papers. See our Newspapers Page for O'Fallon. TripAdvisor Tourism Pages for O'Fallon ...Looking for more information about O'Fallon? A wonderful source is the TripAdvisor website. We always start with the TripAdvisor Tourism page, where you can read an overview with links that will help you find lodging, restaurants and attractions. In addition to the Tourism page for O'Fallon, there are neighboring communities that also have Tourism pages. More information about those communities can be found on our TripAdvisor Page for O'Fallon. Adding O'Fallon to Our Gazetteer ...We originally found mention of O'Fallon in both the FIPS-55 and the GNIS. For more information, see the FIPS and GNIS Codes sections on our Miscellaneous Page. From our notes, the earliest published mention we've found (so far) for O'Fallon was in the document titled List of Post Offices from Cameron Blevins and Richard Helbock.<6> For more details, see References and Mentions for O'Fallon. Footnotes ...
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