O'Fallon, Missouri Information & Statistics

Quick Facts

The 2018 population estimate for O'Fallon is 86,340, a change of 5.32% when compared to 2014. With an area of 29.71 square miles, this works out to a population density of 2,906.30 persons/mi².

The number of households in 2018 were estimated to be 30,766, with an average household size of 2.79.

O'Fallon's 2018 unemployment rate was 3.15%.

The average household income in O'Fallon for 2018 was $104,195, while the median was $87,238.

O'Fallon Population Trends

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O'Fallon Employment Type

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O'Fallon Age Grouping

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O'Fallon Ethnicity Mix

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O'Fallon Fertility Rate

1,028 estimated births

(% of females 15-50 having a child in the past 12 months), ACS 5 year data

O'Fallon Household Characteristics

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O'Fallon Median Age over Time

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O'Fallon Households with Children by Age

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O'Fallon Median Household Income

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O'Fallon Educational Attainment

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O'Fallon Unemployment Rate

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Type of Housing

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O'Fallon Housing Values

Median mortgage payment for 2018: $1,592

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O'Fallon Average Rent as Percentage of Gross Income

Median rent for 2018: $1,090

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O'Fallon Average Commute

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O'Fallon Primary Transportation

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O'Fallon Gender Mix

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O'Fallon Field of Employment

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O'Fallon Population Data

Period	Geography	Population
2014	O'Fallon city, Missouri	81,978
2015	O'Fallon city, Missouri	83,053
2016	O'Fallon city, Missouri	84,018
2017	O'Fallon city, Missouri	85,246
2018	O'Fallon city, Missouri	86,340

ACS 5 year data