O'Fallon, Missouri

Current Weather

The 2000 Census showed that O'Fallon had a population of 46,169 people^<1>. This represents 0.82% of the total population of Missouri, making it the state's 13th most populous community.

The following table shows the recent changes in population. For the years after 2000, the population counts are estimated.

Below is a list of similarily sized communities (while rank is based on the 2000 Census, the population shown is estimated for 2008):

Rank in 2000	Community	Direction	Distance<2>	2008 Population	Change Since 2000
10	Florissant	E	20 mi [32.19 km]	50,561	0.13% increase
11	Blue Springs	W	191 mi [307.4 km]	55,698	15.84% increase
12	Chesterfield	SE	11 mi [17.7 km]	46,064	1.58% decrease
-13-	O'Fallon			76,819	66.39% increase
14	Joplin	SW	237 mi [381.4 km]	49,775	9.39% increase
15	Jefferson City	W	80 mi [128.7 km]	40,771	2.86% increase
16	University City	E	22 mi [35.41 km]	36,289	3.04% decrease

O'Fallon had 15,920 Housing Units^<3> at the time of the 2000 Census.

The 2000 Census shows that O'Fallon has an area^<4> of 22.47 square miles [58.2 km²].

Using the above population and land area values, O'Fallon had a 2000 population density of 2,054 people per square mile [793 people/km²], making it the state's 90th most densely populated area.

Saint Charles County

The city of O'Fallon is located in Saint Charles County.

The county had a population of 286,163 people at the 2000 Census. With it's population of 46,169 people, O'Fallon contained 16.13% of the Saint Charles County total.

In addition, where the community of O'Fallon has a population density of 2,054 people per square mile [793 people/km²], Saint Charles County averages 510 people per square mile [197.2 people/km²].

For more information, please visit our Census Page for Saint Charles County.

Population Rings

To help identify the number of people who live in O'Fallon and the surrounding area, we have drawn concentric rings centered on O'Fallon. We counted the number of communities within each ring and summed their populations.^<5>

US Census QuickFacts

The Census Bureau has created documents containing demographic information called QuickFacts. Although they don't create QuickFacts for all communities, they do have one for O'Fallon. Not only does the QuickFact have details about O'Fallon, it also contains a comparison between O'Fallon and the state of Missouri.

Click here for the O'Fallon QuickFact (QF-2954074).

The following communities are nearby O'Fallon and also have Census QuickFacts:

	Community	Census QuickFact	Direction	Distance	2008 Population	Change Since 2000
	Saint Peters	QF-2965126	E	5 mi [8.05 km]	55,500	8.02% increase
	Saint Charles	QF-2964082	E	10 mi [16.09 km]	64,386	6.74% increase
	Chesterfield	QF-2913600	SE	11 mi [17.7 km]	46,064	1.58% decrease
	Wildwood	QF-2979820	S	14 mi [22.53 km]	34,195	3.99% increase
	Ballwin	QF-2903160	SE	15 mi [24.14 km]	30,033	4% decrease
	Florissant	QF-2924778	E	20 mi [32.19 km]	50,561	0.13% increase
	University City	QF-2975220	E	22 mi [35.41 km]	36,289	3.04% decrease

For more about neighboring communities, please visit our Neighborhood Page for O'Fallon.

A Census Quickfact is available for Saint Charles County (QF-29183).

Below are QuickFacts for the counties that border Saint Charles County.

	County	Census QuickFact	Direction	2008 Population	Change Since 2000
	Lincoln	QF-29113	NW	52,775	34.44% increase
	Calhoun (IL)	QF-17013	N	5,101	0.22% increase
	Jersey (IL)	QF-17083	NE	22,622	4.47% increase
	Madison (IL)	QF-17119	E	268,078	3.46% increase
	Saint Louis	QF-29189	SE	991,830	2.41% decrease
	Franklin	QF-29071	SW	100,898	7.27% increase
	Warren	QF-29219	W	31,214	26.27% increase

Miscellaneous Information

The Federal government has assigned identifying codes to each community, county and state. The following FIPS codes apply to O'Fallon:

O'Fallon is located in Census Region #2 (the Midwest Region) and in Division #4 (the West North-Central Division).

For more information about various Federal Codes, please visit our Misc. Page for O'Fallon.

The Commemorative Quarter for Missouri<6>

Search for Local Businesses

People are finding Google's 'Search-by-Location' to be a useful tool when planning visits to this area. We have prepared the following searches to help you find businesses, travel and vacation activities that are in (or close to) O'Fallon. It's likely that the search results won't include all of the businesses that are in this area, but the results should give you a good foundation for further searches.

For what it's worth: In addition to helping you submit your own search, clicking 'Other...' will frequently (but not always) show you some popular searches for this area.

If you find an error or your business wasn't included in the results, please contact Google to help them resolve the issue (we simply link to 'Search-by-Location' and have no control over their results).

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Footnotes