Maine County Map

Maine has 16 counties. Together they cover 30,845 sq mi of land and 1,414,874 people.

Neighbouring areas are given different colours so their shared borders read clearly. These colours carry no data.

Boundaries from the 2025 Census cartographic boundary file, generalised so that no point moves by more than half a pixel at this width. Select any area to open its page.

Counties: 16; 42nd most of the 51 states and DC
Population: 1,414,874; 42nd largest
Land area: 30,845; square miles
Density: 45.9; people per square mile, computed

Download this map

Free to use and redistribute. The boundaries are public-domain Census Bureau data; attribution to County Maps US is appreciated but not required.

Satellite view

Aerial imagery of Maine with the state boundary drawn on top. County lines are not drawn here: at this scale they would bury the picture, and the map above already carries them.

Aerial view of Maine from the USGS National Map, with its boundary outlined — Imagery: USGS National Map, USGS Imagery Only, public domain, requested from USGS by your browser when you reach this point on the page, at 549 by 800 pixels. The boundary is the 2025 Census cartographic boundary file, reprojected to Web Mercator to match the imagery. You can also open the USGS National Map viewer.

The extremes of Maine

Most populous

Cumberland County

317,222

Least populous

Piscataquis County

17,409

Largest by land area

Aroostook County

6,671 sq mi

Smallest by land area

Sagadahoc County

254 sq mi

Most densely populated

Cumberland County

379 per sq mi

Highest median household income

Cumberland County

$95,677

Which is the largest county in Maine? The answer depends on whether you mean area or population.

The counties, by shape

Every one, drawn to its own scale so the small ones stay recognisable. Shape alone is not a size comparison; the table below carries the areas.

What the map does not say

The counties of Maine are nowhere near the same size. Aroostook County covers 6,671 sq mi of land, 26.3 times the 254 sq mi of Sagadahoc County. People are spread even less evenly: Cumberland County packs 379 per sq mi while Piscataquis County holds 4.4 per sq mi.

They were not drawn in one sitting either. York County dates to 1636, and the boundaries were still being redrawn when Knox County was organised in 1860, 224 years later. Founding years come from Wikidata and are worth checking against the county's own history before citing.

Water is part of the picture too: 67.8% of Knox County is water, the most in the state, which is why its land area and total area disagree. And 8 of the 16 counties here share their names with counties in other states, so searching by name alone can land in the wrong place; the A to Z index lists every duplicate.

All 16 counties of Maine

Sortable on any column. This table doubles as the text alternative to the map above: every area is a link, in alphabetical order, whether or not the map renders.

The 16 counties of Maine, with population, land area, density, median household income, county seat and FIPS code.
Name	Population	Land area	Density	Median income	Seat	FIPS
Androscoggin County	116,487	468 sq mi	249 per sq mi	$67,873	Auburn	23001
Aroostook County	66,609	6,671 sq mi	10.0 per sq mi	$56,700	Houlton	23003
Cumberland County	317,222	836.2 sq mi	379 per sq mi	$95,677	Portland	23005
Franklin County	30,824	1,697 sq mi	18.2 per sq mi	$58,675	Farmington	23007
Hancock County	57,171	1,587 sq mi	36.0 per sq mi	$72,744	Ellsworth	23009
Kennebec County	129,067	867.5 sq mi	149 per sq mi	$69,077	Augusta	23011
Knox County	41,117	364.9 sq mi	113 per sq mi	$74,096	Rockland	23013
Lincoln County	36,595	455.9 sq mi	80.3 per sq mi	$76,875	Wiscasset	23015
Oxford County	60,346	2,077 sq mi	29.1 per sq mi	$60,173	Paris	23017
Penobscot County	157,967	3,397 sq mi	46.5 per sq mi	$66,356	Bangor	23019
Piscataquis County	17,409	3,961 sq mi	4.4 per sq mi	$61,345	Dover-Foxcroft	23021
Sagadahoc County	37,979	254 sq mi	150 per sq mi	$87,806	Bath	23023
Somerset County	51,620	3,924 sq mi	13.2 per sq mi	$58,179	Skowhegan	23025
Waldo County	40,693	730.2 sq mi	55.7 per sq mi	$72,782	Belfast	23027
Washington County	31,334	2,563 sq mi	12.2 per sq mi	$56,024	Machias	23029
York County	222,434	991.2 sq mi	224 per sq mi	$88,333	Alfred	23031

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; US Census Bureau, American Community Survey, American Community Survey 2020-2024 5-Year Estimates, released 29 January 2026; Wikidata (CC0), Wikidata. Retrieved 30 August 2026.

The ten most populous

Data on this page last rebuilt 30 August 2026. How these figures are produced.