There are 7 zip codes in Oldham County, Kentucky. The most populated is 40031, located in La Grange. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
City
Population
40031La Grange25,091
40014Crestwood23,009
40059Prospect20,769
40026Goshen6,345
40056Pewee Valley3,406
40077Westport547
40010Buckner521

Oldham County, Kentucky Zip Codes by Population (2024)