Maine Counties by Land Area

Want to know about the largest to smallest counties in Maine, USA in terms of total land area? Check this resource Maine counties by land area to discover all the details regarding county map (boundary), and nearby counties. On the other hand, check Maine counties by population to know more about county based demographic details.

What is the largest county in Maine by land area?
Aroostook County is the largest county in Maine spanning 6671.14 square miles, with an additional 156.4 square miles of water area. Following Aroostook County, Piscataquis County ranks as the second largest in terms of land area, covering 3960.85 square miles, while Somerset County secures the position as the third largest county in Maine.

What is the smallest county by land area in Maine?
Sagadahoc County is the smallest in Maine by total land area, covers about 253.98 square miles.

What is the largest county by population in Maine?
Cumberland County in Maine, USA, stands as the most populous county having 303,069 residents as per the 2022 census data.

What is the smallest county by population in Maine?
Piscataquis County is the smallest in Maine by total population, having 16,800 residents as per the 2022 census data.

Maine Counties by Size

Rank	County in Maine	Land Area square miles	Water Area square miles	Total Area square miles
1	Aroostook County	6,671	156	6,828
2	Piscataquis County	3,961	417	4,378
3	Somerset County	3,924	169	4,093
4	Penobscot County	3,397	160	3,557
5	Washington County	2,563	695	3,258
6	Oxford County	2,077	99	2,176
7	Franklin County	1,697	47	1,744
8	Hancock County	1,587	758	2,345
9	York County	991	279	1,270
10	Kennebec County	867	84	951
11	Cumberland County	836	381	1,217
12	Waldo County	730	123	853
13	Androscoggin County	468	29	497
14	Lincoln County	456	244	700
15	Knox County	365	779	1,144
16	Sagadahoc County	254	116	370