There are 2 zip codes in Lamar County, Georgia. The most populated is 30204, located in Barnesville. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
3020413,329Barnesville
302573,904Milner
showing: 2 rows

Zip Codes in Lamar County, Georgia by Population (2024)