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Union County, Ohio Zip Codes
Zip Code
City
Population
43040
Marysville
36,678
43344
Richwood
6,119
43358
West Mansfield
2,608
43045
Milford Center
1,775
43067
Raymond
1,360
43036
Magnetic Springs
306
43077
Unionville Center
277
43007
Broadway
43
Population is the most recent figure from the U.S. Census Bureau's 2022
American Community Survey (ACS) 5-Year Estimates
.