Browse the top real estate properties in O Fallon, Missouri with Property Profile Report. The average listing price of homes in O Fallon is $295,373, where the economy and housing-markets are flourishing! Get started by selecting a Zip code above. The most popular zip codes in O Fallon, MO are: 63376, 63366, 63368, 63367 with a median listing price of $295,373.
