Massachusetts, county records

Middlesex County, Massachusetts Public Records

Find the right office in Middlesex County. Court cases, deeds and parcels, sheriff and jail records, vital records and county filings, each linked to the office that keeps them.

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Most requested Middlesex County records

Every card below goes to the government office responsible for that record. Use the category buttons to narrow the list.

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Showing 12 official sources

Official

Property records

North District Registry of Deeds

North District Registry of Deeds, the office that records deeds, mortgages and land documents for Middlesex County, Massachusetts, with its index and copy rules as published.

lowelldeeds.com
Open official site North District Registry of Deeds
Official

State records

Middlesex County Licenses

Massachusetts Division of Occupational Licensure, overseeing 26 boards of registration that license more than 500,000 people, businesses and schools in over 100 trades and professions statewide.

mass.gov
Open official site Middlesex County Licenses
Official

Federal

Middlesex County Census

United States Census Bureau figures for Middlesex County, Massachusetts, with population, housing, income and business counts from the latest estimates.

census.gov
Open official site Middlesex County Census
Official

Property records

South District Registry of Deeds

South District Registry of Deeds, the office that records deeds, mortgages and land documents for Middlesex County, Massachusetts, with its index and copy rules as published.

middlesexsouthregistry.com
Open official site South District Registry of Deeds
Official

Property records

Massachusetts Division of Local Services

Massachusetts Division of Local Services property tax data: tax rates for every city and town, total assessed values by class reported by local boards of assessors, parcel counts and tax levies.

mass.gov
Open official site Massachusetts Division of Local Services
Official

City records

Middlesex County Public Libraries

Middlesex County Public Libraries, with the catalog, branch information and the local history and reference collections it holds.

burlingtonpubliclibrary.org
Open official site Middlesex County Public Libraries

Local record guide

About public records in Middlesex County

County profile

Middlesex County at a glance

State
Massachusetts
County seat
Cambridge
Population
1,632,002
Area
847 sq mi
Founded
1643
Cities and towns
77

Middlesex County offices and records

Sheriff & Law Enforcement. Middlesex County Sheriff's Office is responsible for law enforcement in Middlesex County's unincorporated areas and operates the Middlesex Jail & House of Correction.

Police Departments. Middlesex County is served by several law enforcement agencies, including Middlesex County Sheriff's Office and municipal police departments such as the Cambridge Police Department, Lowell Police Department, and Newton Police Department.

Law Enforcement & Arrests. The Middlesex Sheriff's Office, headquartered at 400 Mystic Avenue in Somerville, Massachusetts 02145 (781-960-2800, website: middlesexsheriff.org), oversees county correctional facilities and provides court security services throughout Middlesex County. The primary detention facility is Middlesex Jail & House of Correction in Cambridge, located at 400 Mystic Avenue, which houses pre-trial detainees and sentenced inmates. Inmate lookup is available through the Sheriff's Office website, where the public can search by name to find current inmates, booking dates, charges, and expected release dates. Because Middlesex County contains 54 municipalities, law enforcement is highly decentralized with each city and town maintaining its own police department. Major municipal departments include the Cambridge Police Department (125 Sixth Street, Cambridge), Lowell Police Department (50 Arcand Drive, Lowell), Newton Police Department (1321 Washington Street, Newton), Somerville Police Department (220 Washington Street, Somerville), Waltham Police Department (119 Lexington Street, Waltham), and dozens of smaller town departments in communities like Lexington, Concord, Arlington, Medford, Malden, Woburn, and Framingham. Arrest records in Massachusetts are subject to the Massachusetts Public Records Law (M.G.L. Chapter 4, Section 7(26).

Arrest Records. Arrest records in Middlesex County are maintained by Middlesex County Sheriff's Office and local police departments.

Jail & Inmate Records. Inmate lookup is available through the Sheriff's Office, allowing the public to find information about current detainees.

Mugshots & Booking Photos. Mugshots in Middlesex County are taken and retained by Middlesex County Sheriff's Office during the booking process. These booking photos are part of the public record and can be accessed through the Sheriff's Office or through court records.

Middlesex County is divided into numerous District Court divisions including Cambridge District Court (40 Thorndike Street, Cambridge, 617-494-4006), Lowell District Court (370 Jackson Street, Lowell, 978-459-4201), Framingham District Court (600 Concord Street, Framingham, 508-532-2000), Newton District Court (1309 Washington Street, Newton, 617-244-6200), Somerville District Court (175 Fellsway, Somerville. The Massachusetts State Police also maintain a barracks in Framingham (508-820-2300) covering portions of Middlesex County. 150 Mount Vernon Street, Dorchester, MA 02125 • Phone: (617-740-2600 The local community Probate and Family Court, located at 10-U Commerce Way in Woburn (781-865-4000) and Lowell Justice Center, handles estates, guardianships, adoptions, divorces, and custody matters. Middlesex County is served by multiple trial court divisions within the Massachusetts Trial Court system. The Middlesex Superior Court, which handles felony criminal cases and civil matters over $50,000, operates from three locations: the main courthouse at 200 Trade Center in Woburn (781-939-2700), and satellite locations at Edward J. Sullivan Courthouse, 40 Thorndike Street in Cambridge, and Lowell Justice Center.

Abandoned mine records

Old mine workings in Middlesex County

Where the workings are, and the office that holds the mine maps.

From the old mine records

What is on record in Middlesex County

Old mine sites
101
Sites with no status in the records
21
Still producing
31
Main minerals
construction sand and gravel; Granite; crushed stone
Holes drawn on the old survey maps
295
Shafts and tunnels
0
What they are
gravel pit, quarry, sand pit, open pit mine or quarry
Maps surveyed
1950 to 1979
Records behind them
457 records for 448 sites, the rest are the same working written down more than once

Is an old working under a property here?

The mine records hold 153 named mine sites inside the county, 101 of them worked out or abandoned; the old survey maps add 295 holes drawn inside the county, 0 of them shafts or tunnels. The minerals the records name are construction sand and gravel; Granite; crushed stone.

A point in either file is a location, not a property line: the sheet shows the opening on the surface, not the rooms under it. The record that shows what runs under a parcel is the mine map. The OSMRE National Mine Map Repository holds scanned underground mine maps and answers requests for a named mine or an area. No abandoned mine inventory is published; the survey's host does not answer this box, both urls are in the search index.

Middlesex County: the boundary from the Census Bureau, and one dot for each old mine or hole on record inside it. Purple is a shaft or a tunnel. Hover a dot for its name.
Massachusetts mine map and abandoned mine records
Named workings recorded in Middlesex County (156 shown, 292 unnamed on the map)

Rows taken off the old survey maps open the USGS record of what sits at that spot, because no single feature on those maps has a page of its own. Rows from the mine records open their own USGS page.

Disclaimer: The mine information here is for general information only. Old mine records can be incomplete, outdated or wrong, and finding nothing here does not mean there is nothing there. Check with the mine map office named here before you rely on it, and have a qualified engineer look at any ground you are worried about. PublicRecordCenter.com assumes no responsibility or liability for any errors, omissions, or consequences arising from the use of this information.

Straight answers

Middlesex County public-records FAQs

Open only the answer you need.

Where can I find mugshots or booking photos in Middlesex County, Massachusetts?

Booking photos are kept by the agency that made the arrest, such as the Middlesex Sheriff's Office or a city police department in Middlesex County. Ask that agency for its record.

How do I get a criminal background check in Middlesex County, Massachusetts?

The Massachusetts criminal history record comes from the Department of Criminal Justice Information Services (DCJIS). A personal CORI request online through iCORI with a MyMassGov account, or on a paper CORI request form by mail for people who cannot use iCORI. Fee: $25 per personal CORI request ($0 with an indigent fee waiver).

How can I look up sex offenders in Middlesex County, Massachusetts?

Search the Massachusetts Sex Offender Registry Board (SORB), or every state at once on the National Sex Offender Public Website run by the U.S. Department of Justice.

How do I register to vote in Middlesex County, Massachusetts?

Register with the local election office (town clerk, election commission or Board of Registrars) or through the Secretary of the Commonwealth, Elections Division. You can also register online with the state online registration. The deadline to register, update your registration or change your party is 10 days before any election or town meeting; there is no Election Day registration now, and Question 4 on the 2026 state ballot asks voters whether to add it.

How do I look up property records in Middlesex County, Massachusetts?

Deeds and other recorded land documents in Middlesex County are kept by the Registry of Deeds for the district. Property values are set by the city or town Board of Assessors, and tax bills come from the city or town collector. Source: official state page.

How do I get a birth or death certificate in Middlesex County, Massachusetts?

Certified birth and death certificates for Massachusetts come from the Registry of Vital Records and Statistics (RVRS), Massachusetts Department of Public Health. Certificates can also be requested from the city or town clerk's office where the birth, marriage or death took place. Online or by phone through VitalChek, by mail with the mail order form and a check or money order payable to Commonwealth of Massachusetts to Registry of Vital Records and Statistics, 150 Mt. Vernon St., 1st Floor, Dorchester, MA 02125, or in person at the Registry counter. Fee: $20.00 per copy in person; $32.00 per copy by standard mail; $54.00 first copy online or by phone through VitalChek.

How do I find business license records in Middlesex County, Massachusetts?

Business entity filings are searched with the Secretary of the Commonwealth, Corporations Division. You file a business certificate (DBA) in the city or town where your business is located, and you check with the licensing boards in your city or town to see if your business needs a license.