Middlesex County Map, Massachusettsa, USA

Written and Fact-checked by | Updated On: April 30, 2026 | 14:01 ET

Map of Middlesex County - Middlesex County is a county located in the U.S. state of Massachusetts. Middlesex County Map showing cities, highways, important places and water bodies. Get Where is Middlesex County located in the map, major cities in Middlesex county, population, areas, and places of interest.

Map of Middlesex County, Massachusetts

Map of Middlesex County, Massachusetts

About Middlesex County Map, Massachusetts: The map showing the county boundary, county seat, major cities, highways, water bodies and neighbouring counties.

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Map of Middlesex County, Massachusetts

"Middlesex County is a county located in the U.S. state of Massachusetts. It's county seat is Lowell, Cambridge. As per 2020 census, the population of Middlesex County is 1614742 people and population density is square miles. According to the United States Census Bureau, the county has a total area of 824 sq mi (2,134 km2). Middlesex County was established on 1643."

Middlesex County Facts

ContinentNorth America
CountryUnited States
StateMassachusetts
County SeatLowell and Cambridge
Largest City/TownLowell
Established1643
Total Area847 sq mi
Land Area818 sq mi
Water Area29 sq mi
Population1,632,002 (Census 2020)
Population Density1,995 people per sq mi
Time ZoneEastern Time Zone (ET)
Major HighwaysI-95, I-93, I-495, US-3, US-20, MA-2
Neighboring CountiesEssex County, Suffolk County, Norfolk County, Worcester County, Hillsborough County (NH)
Famous ForHarvard University, MIT, historic mill cities, technology and education hubs
Top AttractionsHarvard University, MIT, Minute Man National Historical Park, Lowell National Historical Park
Official Websitehttps://www.sec.state.ma.us/cis/cismidd/middidx.htm

Ctities in Middlesex county

City NameTypePopulation (2020)Pop. DensityAreaIncorporated
ActonTown24,021 20.3 sq mi (52.58 km2) sq mi1735
ArlingtonTown46,308 5.5 sq mi (14.24 km2) sq mi1807
AshbyTown3,193 24.2 sq mi (62.68 km2) sq mi1767
AshlandTown18,832 12.9 sq mi (33.41 km2) sq mi1846
AyerTown8,479 9.6 sq mi (24.86 km2) sq mi1871
BedfordTown14,383 13.9 sq mi (36.00 km2) sq mi1729
BelmontTown27,295 4.7 sq mi (12.17 km2) sq mi1859
BillericaTown42,119 26.4 sq mi (68.38 km2) sq mi1655
BoxboroughTown5,506 10.4 sq mi (26.94 km2) sq mi1835
BurlingtonTown26,377 11.9 sq mi (30.82 km2) sq mi1799
CarlisleTown5,237 15.6 sq mi (40.40 km2) sq mi1780
ChelmsfordTown36,392 23.2 sq mi (60.09 km2) sq mi1655
ConcordTown18,491 25.9 sq mi (67.08 km2) sq mi1635
DracutTown32,617 21.4 sq mi (55.43 km2) sq mi1701
DunstableTown3,358 16.7 sq mi (43.25 km2) sq mi1673
EverettCity49,075 3.7 sq mi (9.58 km2) sq mi1870
FraminghamCity72,362 26.5 sq mi (68.63 km2) sq mi1700
GrotonTown11,315 33.7 sq mi (87.28 km2) sq mi1655
HollistonTown14,996 19.0 sq mi (49.21 km2) sq mi1724
HopkintonTown18,758 28.2 sq mi (73.04 km2) sq mi1715
HudsonTown20,092 11.8 sq mi (30.56 km2) sq mi1866
LexingtonTown34,454 16.5 sq mi (42.73 km2) sq mi1713
LincolnTown7,014 15.0 sq mi (38.85 km2) sq mi1754
LittletonTown10,141 17.6 sq mi (45.58 km2) sq mi1715
MaldenCity66,263 5.1 sq mi (13.21 km2) sq mi1649
MarlboroughCity41,793 22.1 sq mi (57.24 km2) sq mi1660
MaynardTown10,746 5.4 sq mi (13.99 km2) sq mi1871
MedfordCity59,659 8.7 sq mi (22.53 km2) sq mi1630
MelroseCity29,817 4.8 sq mi (12.43 km2) sq mi1850
NatickTown37,006 16.1 sq mi (41.70 km2) sq mi1781
NewtonCity88,923 18.2 sq mi (47.14 km2) sq mi1688
North ReadingTown15,554 13.5 sq mi (34.96 km2) sq mi1853
PepperellTown11,604 23.2 sq mi (60.09 km2) sq mi1775
ReadingTown25,518 9.9 sq mi (25.64 km2) sq mi1644
SherbornTown4,401 16.2 sq mi (41.96 km2) sq mi1674
ShirleyTown7,431 15.9 sq mi (41.18 km2) sq mi1775
SomervilleCity81,045 4.2 sq mi (10.88 km2) sq mi1842
StonehamTown23,244 6.7 sq mi (17.35 km2) sq mi1725
StowTown7,174 18.1 sq mi (46.88 km2) sq mi1683
SudburyTown18,934 24.6 sq mi (63.71 km2) sq mi1639
TewksburyTown31,342 21.1 sq mi (54.65 km2) sq mi1734
TownsendTown9,127 33.1 sq mi (85.73 km2) sq mi1732
TyngsboroughTown12,380 18.1 sq mi (46.88 km2) sq mi1809
WakefieldTown27,090 7.9 sq mi (20.46 km2) sq mi1812
WalthamCity65,218 13.8 sq mi (35.74 km2) sq mi1738
WatertownCity[8]35,329 4.1 sq mi (10.62 km2) sq mi1630
WaylandTown13,943 15.9 sq mi (41.18 km2) sq mi1780
WestfordTown24,643 31.3 sq mi (81.07 km2) sq mi1729
WestonTown11,851 17.3 sq mi (44.81 km2) sq mi1713
WilmingtonTown23,349 17.2 sq mi (44.55 km2) sq mi1730
WinchesterTown22,970 6.3 sq mi (16.32 km2) sq mi1850
WoburnCity40,876 12.9 sq mi (33.41 km2) sq mi1642
CambridgeCity118,403 7.1 sq mi (18.39 km2) sq mi1636
LowellCity115,554 14.5 sq mi (37.55 km2) sq mi1826

Roads and Highways in Middlesex County, Massachusetts

Middlesex County has a dense highway network that connects it to Boston, New Hampshire, and other parts of New England.

  • Interstate 95 – major beltway around Boston connecting multiple suburbs
  • Interstate 93 – north-south route linking Boston to New Hampshire
  • Interstate 495 – outer loop connecting regional cities and towns
  • U.S. Route 3 – connects Cambridge to Lowell and into New Hampshire
  • U.S. Route 20 – east-west highway through southern Middlesex County
  • Massachusetts Route 2 – major route connecting Cambridge to western Massachusetts

Neighboring Counties of Middlesex County

  • Essex County (north)
  • Hillsborough County, NH (northwest)
  • Worcester County (west)
  • Norfolk County (south)
  • Suffolk County (east)

Top Attractions in Middlesex County, Massachusetts

Middlesex County blends history, education, and innovation, with attractions ranging from historic sites to world-renowned universities.

  • Harvard University – historic Ivy League campus in Cambridge
  • Massachusetts Institute of Technology (MIT) – leading research university along the Charles River
  • Minute Man National Historical Park – site of early battles of the American Revolution
  • Lowell National Historical Park – showcases the city’s industrial past
  • Walden Pond State Reservation – famous natural site linked to Henry David Thoreau
  • Lexington Battle Green – historic site of the first shots of the Revolution
  • Somerville’s Assembly Row – modern shopping and entertainment district
  • Great Brook Farm State Park – scenic area for hiking and farming activities

Distance from Middlesex County to Nearby Cities

  • Cambridge to Boston – 5 mi (8 km)
  • Lowell to Manchester, NH – 30 mi (48 km)
  • Newton to Worcester – 40 mi (64 km)
  • Cambridge to Providence – 50 mi (80 km)
  • Lowell to Hartford – 90 mi (145 km)

FAQs about Middlesex County

Where is Middlesex County located?

Middlesex County is located in northeastern Massachusetts, surrounding the Boston metropolitan area.

What is Middlesex County known for?

It is known for prestigious universities like Harvard and MIT, as well as its role in American history and technology.

What are the county seats of Middlesex County?

The county has two seats: Cambridge and Lowell.

What is the largest city in Middlesex County?

Lowell is the largest city by population, followed closely by Cambridge.

Which highways run through Middlesex County?

Main highways include I-95, I-93, I-495, U.S. Route 3, and Massachusetts Route 2.

Written and fact-checked by | Last Updated: January 27, 2025, 12:15 PM ET