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St. Clair County, Missouri Zip Codes
Zip Code
City
Population
64776
Osceola
3,521
64724
Appleton City
2,090
64763
Lowry City
1,462
64738
Collins
1,337
64780
Rockville
423
64781
Roscoe
110
Population is the most recent figure from the U.S. Census Bureau's 2022
American Community Survey (ACS) 5-Year Estimates
.