RANKING · 2025 ACS · 16 SHOWN OF 16

Most sparsely populated, Maine counties

Maine counties with the fewest residents per square mile (2023). This list covers the 16 counties in Maine that qualify, ranked against each other statewide.

Flip the list · Most densely populated, US counties →

MaineAll states All rankings

SAME RANKING BYCities 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

01Piscataquis County, MEME17,4094+1%

02Aroostook County, MEME66,60910−10%

03Washington County, MEME31,33412−8%

04Somerset County, MEME51,62013+1%

05Franklin County, MEME30,82418+5%

06Oxford County, MEME60,34629+10%

07Hancock County, MEME57,17136+10%

08Penobscot County, MEME157,96746+9%

09Waldo County, MEME40,69356+12%

10Lincoln County, MEME36,59580+9%

11Knox County, MEME41,117113+4%

12Kennebec County, MEME129,067149+10%

13Sagadahoc County, MEME37,979150+8%

14York County, MEME222,434224+19%

15Androscoggin County, MEME116,487249+12%

16Cumberland County, MEME317,222379+19%

SHOWING 1–16 OF 16

Download CSV (full list, 16 rows)

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