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.