RANKING · 2025 ESTIMATES · 20 SHOWN OF 20

Most densely populated, Maine cities

Maine cities ranked by 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 sparsely populated

RANKPLACESTATEPOPPOPULATION DENSITYVS –

01Portland, MEME69,9113,246–

02South Portland, MEME27,0072,242–

03Waterville, MEME17,5791,299–

04Westbrook, MEME21,5651,255–

05Lewiston, MEME38,8661,138–

06Bath, MEME8,835969–

07Bangor, MEME32,518949–

08Biddeford, MEME22,399745–

09Brewer, MEME9,636632–

10Rockland, MEME7,142556–

11Saco, MEME21,159548–

12Sanford, MEME22,663474–

13Auburn, MEME25,441429–

14Gardiner, MEME6,206396–

15Augusta, MEME19,155347–

16Belfast, MEME6,988205–

17Old, MEME7,589196–

18Presque Isle, MEME8,694115–

19Ellsworth, MEME8,862112–

20Caribou, MEME7,32192–

SHOWING 1–20 OF 20

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