Massachusetts County Map

All 14 counties with county seats and major cities

Massachusetts is divided into 14 counties, and between 1997 and 2000 the state abolished the governments of eight of them. This map shows all 14 counties and their county seats. Tap a county for details, or download the free printable map below.

Massachusetts county map showing all 14 counties with county names and county seats
Map of Massachusetts counties with county seats (dots) and the state capital, Boston (star). Boundaries: U.S. Census Bureau, 2025. Free to use with attribution (CC BY 4.0).

Updated October 4, 2026 · Boundaries: U.S. Census Bureau 2025 · Population: Census estimates for July 1, 2025

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Massachusetts county facts

Number of counties
14
Largest by land area
Worcester County 1,511 sq mi
Smallest by land area
Nantucket County 46.2 sq mi
Most people
Middlesex County 1,669,979
Fewest people
Nantucket County 14,758
Fastest growing since 2020
Nantucket County +3.6%
Highest median household income
Nantucket County $139,688
Oldest county
Essex County est. 1643
Newest county
Hampden County est. 1812
State capital
Boston Suffolk County

County governments were abolished in Franklin (July 1, 1997), Middlesex (July 11, 1997), Hampden and Worcester (July 1, 1998), Hampshire (January 1, 1999), Essex and Suffolk (July 1, 1999) and Berkshire (July 1, 2000). Barnstable, Bristol, Dukes, Nantucket, Norfolk and Plymouth kept theirs.

Barnstable County operates as the Cape Cod Regional Government under a home rule charter.

Suffolk County covers more than the city of Boston, but it is substantially consolidated with the city for governmental purposes.

Nantucket County has the same area and the same governing body as the town of Nantucket; the town's selectmen serve as county commissioners.

List of 14 Massachusetts counties

Sorted A–Z. Click a column to sort, or a name to show it on the map. Download as CSV

CountyCounty seatPopulation 2025Change since 2020Land area (sq mi)Median incomeEstablishedFIPS
Barnstable CountyBarnstable233,539+2%394$95,241168525001
Berkshire CountyPittsfield128,224−0.6%927$76,013176125003
Bristol CountyTaunton593,640+2.5%553$85,625168525005
Dukes CountyEdgartown21,219+3%103$125,786169525007
Essex CountySalem826,653+2.1%493$101,883164325009
Franklin CountyGreenfield70,698−0.5%699$74,907181125011
Hampden CountySpringfield464,338−0.3%617$71,306181225013
Hampshire CountyNorthampton164,065+1.1%527$87,001166225015
Middlesex CountyCambridge, Lowell1,669,979+2.3%818$130,847164325017
Nantucket CountyNantucket14,758+3.6%46$139,688169525019
Norfolk CountyDedham739,749+1.9%396$130,739179325021
Plymouth CountyPlymouth546,829+3%659$114,201168525023
Suffolk CountyBoston791,891−1.1%58$95,631164325025
Worcester CountyWorcester888,502+3.1%1,511$95,939173125027

Massachusetts county map with cities

The largest cities in Massachusetts and the counties they are in. Cities that cross a county line list every county, the main one first. To find any smaller town, use the search box above.

Massachusetts county map with cities and county seats
Massachusetts counties with county seat towns. Download the full-size image
CityCountyPopulation 2025
BostonSuffolk County672,973
WorcesterWorcester County213,862
SpringfieldHampden County154,702
CambridgeMiddlesex County122,588
LowellMiddlesex County119,971
BrocktonPlymouth County106,134
LynnEssex County104,236
QuincyNorfolk County103,173
New BedfordBristol County101,834
Fall RiverBristol County95,298
NewtonMiddlesex County90,741
LawrenceEssex County89,320
SomervilleMiddlesex County84,211
FraminghamMiddlesex County73,021
HaverhillEssex County68,361
PlymouthPlymouth County67,846
MaldenMiddlesex County66,370
WalthamMiddlesex County65,037
BrooklineNorfolk County63,414
TauntonBristol County62,522
RevereSuffolk County60,141
MedfordMiddlesex County59,834
Weymouth TownNorfolk County59,759
PeabodyEssex County55,953
ChicopeeHampden County55,310
MethuenEssex County54,584
EverettMiddlesex County53,572
Barnstable TownBarnstable County50,101
AttleboroBristol County47,447
ArlingtonMiddlesex County46,563

Printable Massachusetts county maps (free PDF, PNG, SVG)

Every map is free to print and share. The PDFs are vector files with real text, so they stay sharp at any size and you can search them for a county name. Use 11×17 (tabloid) for the most readable labels.

Massachusetts county map with all 14 counties labeled

Color map with names

All 14 counties labeled, county seats marked. Letter and 11×17 PDF, high-resolution PNG, editable SVG.

Massachusetts county map with cities

Map with cities

Counties with their county seat towns and major cities.

Blank outline map of Massachusetts counties

Blank outline map

County lines only, no names. For quizzes, coloring and your own notes.

Massachusetts county map with numbers

Numbered map with key

A number in every county with an alphabetical key.

Black and white Massachusetts county map

Black and white

Labeled map that prints well on any printer.

Map of Massachusetts counties shaded by population density

Population map

Counties shaded by population density (2025 estimates).

Data and GIS files

The county table as CSV, and the boundaries as GeoJSON and KML (Google Earth, Google My Maps).

Why most Massachusetts counties have no government

On May 10, 1643, the Massachusetts Bay Colony divided its territory into four shires: Essex, Middlesex, Suffolk and an early Norfolk that was folded into Essex in 1680. Plymouth Colony created Barnstable, Bristol and Plymouth counties in 1685. Dukes County first appears in a 1683 New York law. The islands passed to Massachusetts under the 1692 charter, and in 1695 Martha's Vineyard and Nantucket were set up as separate counties. The other six are Hampshire (1662), Worcester (1731), Berkshire (1761), today's Norfolk (1793), Franklin (1811) and Hampden (1812). Residents mostly deal with town and state offices, not county ones. Chapter 48 of the Acts of 1997, which also had the state pay Middlesex County's debts, ended that county's government at once and scheduled Worcester and Hampden for 1998. In the abolished counties, sheriffs and registers of deeds are still elected, but state agencies manage them.

County maps of neighboring states

Massachusetts counties: questions and answers

How many counties are in Massachusetts?
Massachusetts has 14 counties. All 14 counties remain on the map and in Census data, but eight of them (Berkshire, Essex, Franklin, Hampden, Hampshire, Middlesex, Suffolk and Worcester) no longer have a county government.
What is the largest county in Massachusetts?
By land area, Worcester County is the largest (1,511 sq mi). By population, Middlesex County is the largest, with 1,669,979 people (2025 estimate).
What is the smallest county in Massachusetts?
Nantucket County is the smallest by land area (46.2 sq mi). Nantucket County has the fewest people: 14,758 (2025 estimate).
What is the wealthiest county in Massachusetts?
By median household income, Nantucket County ranks first with $139,688 (American Community Survey 2020–2024). The lowest is Hampden County at $71,306.
What county is Boston in?
Boston is in Suffolk County.
What county is Worcester in?
Worcester is in Worcester County.
What county is Springfield in?
Springfield is in Hampden County.
How can I see county lines on Google Maps?
Google Maps does not draw county lines. Download the KML file from the printable maps section above and import it into Google My Maps (Create a new map › Import) or open it in Google Earth to see every Massachusetts county boundary on top of Google's map.
Can I use this map for free?
Yes. The maps and files on this page are free to print, share and use in your own work, including commercial projects, under the CC BY 4.0 licence. Please credit “WhichCounty (whichcounty.com)”.

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Sources and methodology

Found an error? Tell us. Last data update: October 4, 2026.