RANKING · 2020 CENSUS · 33 SHOWN OF 33

Most population gained, Maine cities · 2020

Maine cities that added the most residents from the 2010 census to 2020, by raw count of people rather than percentage. This list covers the 33 cities in Maine that qualify, ranked against each other statewide.

Flip the list · Most population lost, US cities →

MaineAll statesPop > 5KAll rankings

SAME RANKING BYCounties States Metros

YEAR2000 2010 2020 2024

RANKPLACESTATEPOPPOPULATION CHANGEVS 2000

01Sanford, MEME22,663+12,221−7598%

02Westbrook, MEME21,565+2,906+13738%

03Portland, MEME69,911+2,214−2131%

04Saco, MEME21,159+1,899+16%

05Brunswick, MEME17,652+1,858+1297%

06South Portland, MEME27,007+1,496+829%

07Biddeford, MEME22,399+1,275+450%

08Auburn, MEME25,441+1,006−191%

09Orono, MEME11,151+711−146%

10Topsham, MEME7,271+692+458%

11Ellsworth, MEME8,862+658+37%

12Gorham, MEME7,593+587+8%

13Kennebunk, MEME6,221+562+3%

14Lewiston, MEME38,866+529−113%

15Kittery, MEME5,110+411−222%

16North Windham, MEME5,417+370−25%

17Old Orchard Beach, MEME9,244+336−69%

18Belfast, MEME6,988+270+938%

19Yarmouth, MEME6,289+256+15%

20Bath, MEME8,835+252−145%

21Brewer, MEME9,636+190−659%

22Hampden, MEME5,161+173−25%

23Gardiner, MEME6,206+161−129%

24Skowhegan, MEME6,662+107−136%

25Waterville, MEME17,579+106−107%

26Houlton, MEME5,082-113−68%

27Augusta, MEME19,155-237−91%

28Rockland, MEME7,142-361−1%

29Old, MEME7,589-409+235%

30Caribou, MEME7,321-793−28%

31Presque Isle, MEME8,694-895−14%

32Bangor, MEME32,518-1,286−25%

33Winslow, MEME5,873-2,476−207%

SHOWING 1–33 OF 33

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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU DECENNIAL CENSUS