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Northeast county atlas

Maine county map

See all 16 counties on one clear, labelled map. Use the alphabetical table below to verify names and compare land area.

Boundary vintage: 2025Source: U.S. Census BureauUpdated September 15, 2026
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Labelled map of Maine counties AndroscogginAroostookCumberlandFranklinHancockKennebecKnoxLincolnOxfordPenobscotPiscataquisSagadahocSomersetWaldoWashingtonYork
Boundary data: U.S. Census Bureau 2025 cartographic boundary files. Zoom in for county names, then drag the map or use the arrow keys to move around.
Map scope: This is a county boundary reference map. It does not show roads, parcels, ZIP codes, election precincts, or terrain.

Alphabetical list of Maine counties

The land-area figures are rounded to the nearest square mile. Water area is shown separately so large lakes or coastal waters do not obscure the comparison.

NameFIPS codeLand areaWater area
Androscoggin County23001468 sq mi29 sq mi
Aroostook County230036,671 sq mi156 sq mi
Cumberland County23005836 sq mi381 sq mi
Franklin County230071,697 sq mi47 sq mi
Hancock County230091,587 sq mi758 sq mi
Kennebec County23011868 sq mi84 sq mi
Knox County23013365 sq mi767 sq mi
Lincoln County23015456 sq mi244 sq mi
Oxford County230172,077 sq mi99 sq mi
Penobscot County230193,397 sq mi160 sq mi
Piscataquis County230213,961 sq mi417 sq mi
Sagadahoc County23023254 sq mi116 sq mi
Somerset County230253,924 sq mi169 sq mi
Waldo County23027730 sq mi134 sq mi
Washington County230292,563 sq mi695 sq mi
York County23031991 sq mi279 sq mi

Largest Maine counties by land area

These are the five largest mapped units in Maine by Census-reported land area:

  1. Aroostook County — 6,671 square miles
  2. Piscataquis County — 3,961 square miles
  3. Somerset County — 3,924 square miles
  4. Penobscot County — 3,397 square miles
  5. Washington County — 2,563 square miles

How to read and use this map

County lines are administrative boundaries, not postal routes. A mailing address can use a city name associated with a neighboring area, and ZIP codes can cross county lines. When you need to identify a county for an address, confirm it with an official geocoder or local government source.

For classroom or planning use, print directly from this page. If labels become crowded, choose landscape orientation and reduce page margins. The underlying vector lines remain crisp at different sizes.

Frequently asked questions

How many counties are in Maine?

Maine has 16 counties in the U.S. Census Bureau’s 2025 cartographic boundary file.

Can I print this Maine county map?

Yes. Choose Print map and use landscape orientation for the widest map. Because the map is SVG, its boundary lines stay sharp when scaled.

Are these legal survey boundaries?

No. This is a generalized reference map. Property, parcel, election, and legal boundary questions should be checked with the relevant state or local agency.

Map source

U.S. Census Bureau, 2025 Cartographic Boundary File, Counties, 1:20,000,000. Land and water area fields are supplied in the same file and converted from square meters to square miles. Accessed September 15, 2026.