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Cities and Towns in the United States > Commonwealth Massachusetts > Middlesex County
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Middlesex County, located in the eastern part of Massachusetts, is renowned for its rich history and vibrant cultural scene. The county boasts a diverse array of attractions, including the renowned Harvard University and Massachusetts Institute of Technology (MIT). Visitors can explore the historic towns of Concord and Lexington, which played pivotal roles in the American Revolutionary War. Nature enthusiasts can take in the scenic beauty of Middlesex Fells Reservation, a sprawling park with miles of hiking trails and picturesque views. Additionally, the county hosts numerous festivals and events throughout the year, providing ample opportunities for cultural enrichment and entertainment.

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Middlesex County administration contact details

Middlesex County administration contact details50 Church Street, Cambridge, MA 02138
County seatCambridge
Phone number(617) 494-4047
Official websitehttps://www.middlesexcountymd.org
County ClerkMichael A. Sullivan
County CommissionerPeter Koutoujian

Middlesex County, MA Sheriff's Office and Jail Information

Number of prisons1
Jail namesMiddlesex Jail & House of Correction
Sheriff office address269 Treble Cove Road, Billerica, MA 01862
Sheriff office phone number978-667-1711
Inmate search informationTo locate an inmate in Middlesex County, visit the Massachusetts Department of Correction's website and use their inmate locator tool or contact the Middlesex Sheriff's Office for assistance.

Middlesex County (MA) Statistics

Number of cities/towns/villages 54
Population 1,611,699
Area 847 sq mi
Density 1,902/sq mi
Median Household Income $107,632
Poverty rate 7%
Unemployment rate 3%
Educational Attainment (Bachelor's Degree or higher) 57%

Environmental risk in Middlesex County, MA

Overall riskRelatively High
Expected Annual LossRelatively High
Social VulnerabilityRelatively Low
Community ResilienceVery High
Avalanche RiskNot Applicable
Coastal Flooding RiskRelatively Low
Cold Wave RiskRelatively Moderate
Drought RiskRelatively Moderate
Earthquake RiskRelatively Moderate

Data obtained from the FEMA National Risk Index.

counties surrounding Middlesex

Suffolk 22.8 milesNorfolk 24.2 milesWorcester 27.9 miles
Essex 28.7 milesHillsborough 34 milesRockingham 37.8 miles

List of cities and towns in Middlesex County by population size

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Birth certificate - U.S. Vital Records