There are 22 zip codes in Charles County, Maryland. The most populated is 20603, located in Waldorf. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
City
Population
20603Waldorf32,495
20602Waldorf28,988
20601Waldorf27,328
20646La Plata21,248
20695White Plains11,455
20640Indian Head10,629
20616Bryans Road6,792
20637Hughesville6,221
20622Charlotte Hall5,471
20664Newburg2,780
20662Nanjemoy2,590
20675Pomfret2,060
20677Port Tobacco2,055
20625Cobb Island1,248
20693Welcome1,210
20611Bel Alton1,127
20658Marbury978
20632Faulkner802
20645Issue763
20617Bryantown630
20612Benedict147
20661Mount Victoria0

Charles County, Maryland Zip Codes by Population (2024)