RANKING · 2020 CENSUS · 34 SHOWN OF 34

Largest by population, Maine cities · 2020

The most populous us cities as of the 2023 estimates. This list covers the 34 cities in Maine that qualify, ranked against each other statewide.

MaineAll statesPop > 5KAll rankings

SAME RANKING BYCounties States Metros ZIP codes

RELATEDFastest growing Fastest shrinking Most densely populated Most sparsely populated Best broadband access Worst broadband access

YEAR1990 2000 2010 2020 2025

RANKPLACESTATEPOPTOTAL POPULATIONVS 2000

01Portland, MEME69,91168,408+6%

02Lewiston, MEME38,86637,121+4%

03Bangor, MEME32,51831,753+1%

04South Portland, MEME27,00726,498+14%

05Auburn, MEME25,44124,061+4%

06Biddeford, MEME22,39922,552+8%

07Sanford, MEME22,66321,982+117%

08Westbrook, MEME21,56520,400+26%

09Saco, MEME21,15920,381+21%

10Augusta, MEME19,15518,899+2%

11Brunswick, MEME17,65217,033+15%

12Waterville, MEME17,57915,828+1%

13Orono, MEME11,15110,185+23%

14Brewer, MEME9,6369,672+8%

15Old Orchard Beach, MEME9,2448,960+1%

16Presque Isle, MEME8,6948,797−8%

17Bath, MEME8,8358,766−5%

18Ellsworth, MEME8,8628,399+30%

19Gorham, MEME7,5937,469+79%

20Old, MEME7,5897,431−9%

21Caribou, MEME7,3217,396−11%

22Belfast, MEME6,9886,938+9%

23Rockland, MEME7,1426,936−9%

24Topsham, MEME7,2716,623+6%

25Skowhegan, MEME6,6626,404−4%

26Yarmouth, MEME6,2896,125+72%

27Gardiner, MEME6,2065,961−4%

28Oak Hill, MEME5,6315,846–

29Kennebunk, MEME6,2215,776+20%

30Winslow, MEME5,8735,318−31%

31North Windham, MEME5,4175,274+15%

32Kittery, MEME5,1104,973+2%

33Houlton, MEME5,0824,743−10%

34Hampden, MEME5,1614,516+9%

SHOWING 1–34 OF 34

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UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES