There are 3 zip codes in Mercer County, Kentucky. The most populated is 40330, located in Harrodsburg. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
4033020,437Harrodsburg
403722,350Salvisa
40310554Burgin
showing: 3 rows

Zip Codes in Mercer County, Kentucky by Population (2024)