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Northeast county atlas

Massachusetts county map

See all 14 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 Massachusetts counties BarnstableBerkshireBristolDukesEssexFranklinHampdenHampshireMiddlesexNantucketNorfolkPlymouthSuffolkWorcester
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 Massachusetts 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
Barnstable County25001394 sq mi911 sq mi
Berkshire County25003927 sq mi20 sq mi
Bristol County25005553 sq mi138 sq mi
Dukes County25007103 sq mi388 sq mi
Essex County25009493 sq mi336 sq mi
Franklin County25011699 sq mi25 sq mi
Hampden County25013617 sq mi17 sq mi
Hampshire County25015527 sq mi18 sq mi
Middlesex County25017818 sq mi29 sq mi
Nantucket County2501946 sq mi257 sq mi
Norfolk County25021396 sq mi48 sq mi
Plymouth County25023659 sq mi435 sq mi
Suffolk County2502558 sq mi62 sq mi
Worcester County250271,511 sq mi68 sq mi

Largest Massachusetts counties by land area

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

  1. Worcester County — 1,511 square miles
  2. Berkshire County — 927 square miles
  3. Middlesex County — 818 square miles
  4. Franklin County — 699 square miles
  5. Plymouth County — 659 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 Massachusetts?

Massachusetts has 14 counties in the U.S. Census Bureau’s 2025 cartographic boundary file.

Can I print this Massachusetts 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.