Middlesex County, Massachusetts

Middlesex County: County in Massachusetts, United States

About

Middlesex County is a county located in the U.S. state of Massachusetts. As of the 2010 census, the population was 1,503,085 and a population density of 685 people per km². After 10 years in 2020 county had an estimated population of 1,609,379 inhabitants. Its county seat is Lowell, Cambridge. The county was created 381 years ago in 1642.

Middlesex County locator map
Location of Middlesex County on Massachusetts map.

Quick Facts about Middlesex County

Population : 1,609,379 (2020)
Country : United States of America
State : Massachusetts (United States)
Different from : Middlesex County, Middlesex County, Middlesex County
Area : 2195 km2
Water as percent of area : 3.5%
Land as percent of area : 96.5%
Named for : Middlesex
Altitude : 197 feet / 60 meters
Capital : Lowell, Cambridge
Establishment : January 01, 1643
Time Zone : America/New_York
Local time : 01:45:26 (18th December 2024)
Density : 733 Pop. per km² as of 2020
Population growth : 6.6% (2010-2020)
Map of Massachusetts highlighting Middlesex County locator map image
Map of Massachusetts highlighting Middlesex County
Map of Massachusetts highlighting Middlesex County locator map image
Map of Massachusetts highlighting Middlesex County locator map image

Geography

Middlesex County is located at 42°29'8"N 71°23'31"W (42.4855500, -71.3918400). It has 5 neighbors: Hillsborough County, Essex County, Norfolk County, Suffolk County and Worcester County.

Middlesex County map

Click "full screen" full screen map icon to open full mode. View satellite images

The largest city of Middlesex County is Cambridge with a population of 119,192. Other cities include, Lowell population 110,904, City of Lowell population 109,945, Newton population 87,803 and Somerville population 80,935. See all Middlesex County cities & populated places.

Middlesex County Populated Places (more)

Cities, towns, neighborhoods & other populated places in Middlesex County.

City Name Population Title
Cambridge 119,192 The most populous city in Middlesex County, Massachusetts.
Lowell 110,904 The third most populous city in Massachusetts.
Newton 87,803 The most populous city in Middlesex County, Massachusetts.
Somerville 80,935 A city in Middlesex County, Massachusetts.
Framingham 73,892 Town in Massachusetts
Framingham Center 65,413 A census-designated place (CDP) in Framingham, Massachusetts.
Waltham 62,069 A city in Middlesex County, Massachusetts.
Medford 60,847 The most populous city in Middlesex County, Massachusetts.
Malden 59,922 The most populous city in Middlesex County, Massachusetts.
Everett 46,107 A city in Middlesex County, Massachusetts.
Arlington 45,169 Town in Middlesex County, Massachusetts, United States
Billerica 43,021 Town in Massachusetts
Woburn 40,135 A city in Middlesex County, Massachusetts.
Marlborough 39,290 City in Middlesex County, Massachusetts, United States
Watertown 36,125 City in Middlesex County, Massachusetts, United States
Natick 35,766 Town in Massachusetts

Middlesex County has 5 neighbours.

  • Cambridge

Demographics

The population of Middlesex County increased by 6.6% in 10 years.

Year Population % Change Method
2010 1,503,085 - census
2011 1,524,848 1.43% estimation process
2012 1,542,867 1.17% estimation process
2013 1,560,204 1.11% estimation process
2014 1,574,993 0.94% estimation process
2015 1,585,432 0.66% estimation process
2016 1,594,664 0.58% estimation process
2017 1,603,943 0.58% estimation process
2018 1,608,470 0.28% estimation process
2019 1,611,699 0.2% estimation process
2020 1,609,379 -0.14% estimation process
Map of countries with a smaller population than Middlesex County

Comitatul Middlesex, Comte de Middlesex, Comté de Middlesex, Condado de Middlesex, Condado han Middlesex, Contea di Middlesex, Hrabstwo Middlesex, Middlesex, Middlesex Kun, Middlesex Kūn, Middlesex konderria, Middlesex megye, Middlesexi maakond, Middlseks, Midlseks, Midulseks, Okrug Midlseks, Quan Middlesex, Quận Middlesex, mi de er sai ke si xian, midalaseksa ka'unti, midorusekkusu jun, shhrstan mydlsks masachwst, Мидлсекс, Мидълсекс, Міддлсекс, Округ Мидлсекс, Միդլսեքս շրջան, شهرستان میدلسکس، ماساچوست, مقاطعة ميدلسيكس, مڈلسیکس کاؤنٹی, مڈلسیکس کاؤنٹی، میساچوسٹس, মিডলসেক্স কাউন্টি, ミドルセックス郡, 米德爾塞克斯縣

People born in Middlesex County (12)

People born in Middlesex County, including screenwriter and film director Jonathan Hensleigh, educator Elizabeth Peabody, tennis player Frederick Kovaleski, .

List

  • Alexandra Worden (American microbiologist) she was born in 01/01/1970
  • Cornelius Coolidge (American real estate developer) he was born in 30/08/1778
  • Dennis Moran (American computer criminal) he was born in 27/12/1982
  • Sears Cook Walker (American astronomer) he was born in 28/03/1805
  • Hamilton McKown Twombly (American businessman) he was born in 11/08/1849
  • John Guiney (American shot putter) he was born in 01/06/1882
  • Mary Jo Foley (American podcaster, author, and blogger) she was born in 01/01/1961
  • Lizzie P. Evans-Hansell (American novelist, short-story writer) she was born in 27/08/1836
  • Eleanor L. Richardson (member of the Georgia House of Representatives from 1974-1990) she was born in 17/03/1913

Other places with the same name (4)

Massachusetts Other Counties (more counties)

County Name Population Title
Worcester County 829,212 County in Massachusetts, United States
Suffolk County 801,582 County in Massachusetts, United States
Essex County 791,263 County in Massachusetts, United States
Norfolk County 709,409 County in Massachusetts, United States
Boston 691,531 The twenty-first most populous city in the United States and the center of the Boston metropolitan area.
South Boston 571,281 Town in Halifax County, Virginia, United States
Bristol County 566,765 County in Massachusetts, United States
Plymouth County 523,738 County in Massachusetts, United States
Hampden County 463,986 County in Massachusetts, United States
Barnstable County 213,164 County in Massachusetts, United States
Worcester 184,570 The second most populous city in Massachusetts.
Hampshire County 161,401 County in Massachusetts, United States
Springfield 152,646 The fourth most populous city in Massachusetts.
Berkshire County 124,571 County in Massachusetts, United States
Cambridge 119,192 The most populous city in Middlesex County, Massachusetts.
Lowell 110,904 The third most populous city in Massachusetts.