There are 5 zip codes in Nassau County, Florida. The most populated is 32034, located in Fernandina Beach. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
3203440,026Fernandina Beach
3209721,778Yulee
3201115,006Callahan
3204611,042Hilliard
320093,582Bryceville

Zip Codes in Nassau County, Florida by Population (2024)