RANKING · 2020 CENSUS · 33 SHOWN OF 33

Fastest shrinking, Maine cities

Maine cities with the steepest population decline since the prior decennial census. This list covers the 33 cities in Maine that qualify, ranked against each other statewide.

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MaineAll statesPop > 5KAll rankings

SAME RANKING BYCounties States Metros

YEAR2000 2010 2020

RANKPLACESTATEPOPPOPULATION GROWTHVS 2000

01Winslow, MEME5,873-31.8%−175%

02Caribou, MEME7,321-9.7%−17%

03Presque Isle, MEME8,694-9.2%−6%

04Old, MEME7,589-5.2%+253%

05Rockland, MEME7,142-4.9%+9%

06Bangor, MEME32,518-3.9%−24%

07Houlton, MEME5,082-2.3%−63%

08Augusta, MEME19,155-1.2%−90%

09Waterville, MEME17,579+0.7%−108%

10Lewiston, MEME38,866+1.4%−114%

11Skowhegan, MEME6,662+1.7%−140%

12Brewer, MEME9,636+2.0%−632%

13Gardiner, MEME6,206+2.8%−134%

14Bath, MEME8,835+3.0%−152%

15Portland, MEME69,911+3.3%−2075%

16Old Orchard Beach, MEME9,244+3.9%−72%

17Hampden, MEME5,161+4.0%−33%

18Belfast, MEME6,988+4.0%+890%

19Yarmouth, MEME6,289+4.4%−34%

20Auburn, MEME25,441+4.4%−196%

21South Portland, MEME27,007+6.0%+761%

22Biddeford, MEME22,399+6.0%+435%

23Orono, MEME11,151+7.5%−148%

24North Windham, MEME5,417+7.5%−37%

25Ellsworth, MEME8,862+8.5%+6%

26Gorham, MEME7,593+8.5%−43%

27Kittery, MEME5,110+9.0%−239%

28Saco, MEME21,159+10.3%−5%

29Kennebunk, MEME6,221+10.8%−15%

30Topsham, MEME7,271+11.7%+478%

31Brunswick, MEME17,652+12.2%+1252%

32Westbrook, MEME21,565+16.6%+12652%

33Sanford, MEME22,663+125.2%−8008%

SHOWING 1–33 OF 33

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