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Population Review

What is the population of O'Fallon city, MO?

O'Fallon city, MO has a population of 92,697, according to Census ACS 5-Year estimates. The median age is 38.2 and the median household income is $107,203.

Context

O'Fallon city is located in Missouri. City population reflects residents within municipal boundaries, not the broader metropolitan area, which often includes several million more people.

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O'Fallon city, MO has a population of 92,697, according to Census ACS 5-Year estimates. The median age is 38.2 and the median household income is $107,203.