There are 8 zip codes in Sagadahoc County, Maine. The most populated is 4530, located in Bath. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
0453011,584Bath
040869,566Topsham
043573,536Richmond
042873,158Bowdoin
045793,112Woolwich
040083,083Bowdoinham
045621,961Phippsburg
04548868Georgetown

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