RANKING · 2025 ACS · 20 SHOWN OF 20

Most sparsely populated, Maine cities

Maine cities with the fewest residents per square mile (2023). This list covers the 20 cities in Maine that qualify, ranked against each other statewide.

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MaineAll statesPop > 5KAll rankings

SAME RANKING BYCounties States Metros

RELATEDLargest by population Fastest growing Fastest shrinking Most densely populated Best broadband access Worst broadband access

YEAR1990 2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION DENSITYVS 2000

01Caribou, MEME7,32192−12%

02Ellsworth, MEME8,862112+37%

03Presque Isle, MEME8,694115−9%

04Old, MEME7,589196−7%

05Belfast, MEME6,988205+10%

06Augusta, MEME19,155347+3%

07Gardiner, MEME6,206396+0%

08Auburn, MEME25,441429+10%

09Sanford, MEME22,663474+124%

10Saco, MEME21,159548+26%

11Rockland, MEME7,142556−6%

12Brewer, MEME9,636632+7%

13Biddeford, MEME22,399745+7%

14Bangor, MEME32,518949+3%

15Bath, MEME8,835969−5%

16Lewiston, MEME38,8661,138+9%

17Westbrook, MEME21,5651,255+34%

18Waterville, MEME17,5791,299+13%

19South Portland, MEME27,0072,242+16%

20Portland, MEME69,9113,246+9%

SHOWING 1–20 OF 20

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