There are 26 zip codes in Kennebec County, Maine. The most populated is 4901, located in Waterville. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
490126,463Waterville
433026,394Augusta
434512,282Gardiner
49637,376Oakland
43646,138Winthrop
49894,526Vassalboro
43584,434South China
43503,605Litchfield
42593,410Monmouth
49273,381Clinton
49173,258Belgrade
43442,988Farmingdale
43632,643Windsor
43552,616Readfield
43472,558Hallowell
43512,387Manchester
49102,311Albion
43521,618Mount Vernon
43461,522Randolph
43491,302Kents Hill
42841,069Wayne
4265697North Monmouth
4360642Vienna
4359326South Gardiner
4918Belgrade Lakes
4926China Village
showing: 26 rows

Zip Codes in Kennebec County, Maine by Population (2024)