ZIP Code 64776
About Osceola
Osceola is a city in and the county seat of St. Clair County, Missouri, United States. The population was 909 at the 2020 census. During the American Civil War, Osceola was the site of the Sacking of Osceola.
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Area Profile
US Census (ACS 5-year · Gazetteer)
3,355
population
$43,461
median household income
14
people / sq mi
$140,700
median home value
$636
median gross rent
50.9
median age
2,196
housing units
1,535
households
237.3
land area (sq mi)