RANKING · 2025 ESTIMATES · 20 SHOWN OF 20

Most sparsely populated, Maine cities

Maine cities with the fewest residents per square mile (2025). 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 population gained Most population lost Most densely populated

RANKPLACESTATEPOPPOPULATION DENSITYVS –

01Caribou, MEME7,32192–

02Ellsworth, MEME8,862112–

03Presque Isle, MEME8,694115–

04Old, MEME7,589196–

05Belfast, MEME6,988205–

06Augusta, MEME19,155347–

07Gardiner, MEME6,206396–

08Auburn, MEME25,441429–

09Sanford, MEME22,663474–

10Saco, MEME21,159548–

11Rockland, MEME7,142556–

12Brewer, MEME9,636632–

13Biddeford, MEME22,399745–

14Bangor, MEME32,518949–

15Bath, MEME8,835969–

16Lewiston, MEME38,8661,138–

17Westbrook, MEME21,5651,255–

18Waterville, MEME17,5791,299–

19South Portland, MEME27,0072,242–

20Portland, MEME69,9113,246–

SHOWING 1–20 OF 20

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU POPULATION ESTIMATES