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Marion County, Missouri Zip Codes
Zip Code
City
Population
63401
Hannibal
21,167
63461
Palmyra
5,452
63456
Monroe City
4,995
63454
Maywood
1,166
63463
Philadelphia
825
63471
Taylor
805
Population is the most recent figure from the U.S. Census Bureau's 2022
American Community Survey (ACS) 5-Year Estimates
.