Middlesex County Sex Offender Registry

Middlesex County is the most populous county in Massachusetts, home to roughly 1.6 million residents spread across Cambridge, Lowell, Newton, and dozens of other communities. Finding sex offenders in Middlesex County means using the state SORB database for Level 2 and Level 3 registrants, contacting local police departments for in-person lookups, and understanding how community notification works across the county's many cities and towns. This page covers every resource you need to search the Middlesex County sex offender registry.

Middlesex County Sheriff and SORB Coordination

The Middlesex County Sheriff's Office is based at 269 Treble Cove Road in Billerica. You can reach the office by phone at (978) 667-1711. The Sheriff oversees the Middlesex County Jail and House of Correction at that same location. While the Sheriff does not run the sex offender registry directly, the office plays a key role in community safety. Offenders who are released from the county jail must comply with SORB registration requirements before or upon release.

The Middlesex County Sheriff's Office works alongside the Sex Offender Registry Board to make sure that offenders who cycle through the county's correctional system do not fall through the cracks. When a registered sex offender is booked or released, that information flows to local police and, in some cases, to the SORB database. The Sheriff's Office also maintains inmate records, though those are not available through an online portal. Requests for inmate records must go through the Sheriff's Office directly.

The state agency responsible for the registry is SORB. It sets the rules, classifies offenders, and manages the public-facing database.

The Sex Offender Registry Board can be reached at (978) 740-6400, or toll-free at 1-800-93-MEGAN. The mailing address is P.O. Box 4547, Salem, MA 01970. All classification decisions and appeals go through SORB, not the Sheriff's Office.

The screenshot below shows the Middlesex County Sheriff's website, which provides information about jail programs, inmate records, and public safety initiatives in the county.

The Middlesex County Sheriff's website includes information about correctional programs and how the office handles community reentry for people leaving the county jail.

The Sheriff's site also covers programs aimed at reducing recidivism, which directly affects public safety outcomes for Middlesex County residents living near released offenders.

How to Search Sex Offenders in Middlesex County

The main tool for searching sex offenders in Middlesex County is the SORB online portal at sorb.chs.state.ma.us. This database is free and open to the public. You can search by name, city, town, or zip code. Only Level 2 and Level 3 offenders appear in the public database. Level 1 offenders are classified as low risk and their information is not available to the general public.

There is one important limitation to keep in mind. Level 2 offenders who were classified before July 12, 2013, do not appear in the online database. If you want information on those individuals, you need to go in person to any local police department in Massachusetts. An officer can look up those records for you at no cost. Bring a photo ID. Most departments can help you the same day.

Level 3 offenders are fully searchable online without restrictions. They represent the highest-risk category under Massachusetts law, and the state requires their information to be publicly available. The SORB portal lets you see a photo, address, physical description, and offense details for each Level 3 registrant in Middlesex County.

For broader national searches, the National Sex Offender Public Website run by the U.S. Department of Justice lets you search registries across all 50 states. This is useful if you want to check whether someone has a registration in another state in addition to Massachusetts.

Note: The SORB portal is updated regularly, but not in real time. Addresses shown reflect the most recent registration on file and may not capture very recent moves.

Police Departments in Middlesex County

Middlesex County has many cities and towns, each with its own police department. These local departments are where you go for in-person registry lookups, Level 2 offenders not listed online, and community notification details. Below are the key departments serving Middlesex County's largest communities.

The Lowell Police Department is located at 50 Arcand Drive, Lowell, MA 01852. You can reach them at (978) 674-4508 or visit lowellma.gov. Lowell is the second-largest city in Middlesex County and has a notable number of registered sex offenders given its urban density. Officers there can assist with in-person lookups and answer questions about Level 2 offenders not in the online system.

Cambridge Police can be reached at 125 6th Street, Cambridge, MA 02142, or by calling (617) 349-3300. Visit them at cambridgepolice.org. Cambridge is the county seat and home to several universities, which means the Campus Sex Crimes Prevention Act requirements apply to institutions like Harvard and MIT. Those schools must disclose SORB information about registered offenders to campus security departments.

Other key departments include Newton PD at 1321 Washington Street, West Newton, (617) 796-2100; Framingham PD at 1 William Welch Way, Framingham, (508) 872-1212; Waltham PD at 155 Lexington Street, Waltham, (781) 314-3600; Malden PD at 800 Eastern Avenue, Malden, (781) 397-7171; and Medford PD at 100 Main Street, Medford, (781) 395-1212. Each of these departments can provide registry information for offenders in their jurisdictions.

Any police department in the state is required by law to assist you with registry lookups during business hours. You do not need to live in that town to ask. You can call ahead to confirm hours before making the trip.

Community Notification in Middlesex County

Massachusetts law requires active community notification for Level 3 sex offenders. When a Level 3 offender moves into or registers within a Middlesex County community, local police must notify neighbors, nearby schools, and relevant organizations. The type and scope of notification depends on the offender's classification level and the surrounding community.

Level 3 offenders pose the highest risk of reoffending according to SORB's classification process. Police in each Middlesex city and town manage this notification process on their own. There is no single county-wide notification system. Lowell PD handles notifications in Lowell. Cambridge PD covers Cambridge. Each department follows SORB guidelines but carries out the work independently.

Level 2 offenders are subject to organizational notification. That means SORB or local police can notify organizations like schools, daycare centers, and youth programs about nearby Level 2 registrants. The general public can also access Level 2 information online or in person, but police do not go door to door for Level 2 cases the way they do for Level 3.

Level 1 offenders receive no public notification. Their records are sealed from the public registry. If you believe someone poses a risk but their classification is not publicly available, you may contact SORB to report a concern, but the board does not disclose Level 1 records based on individual requests.

Registration Requirements for Middlesex County Offenders

Sex offenders who live, work, or attend school in Middlesex County must register with SORB under Massachusetts General Laws Chapter 6, Sections 178C through 178Q. The duty to register is set out in Section 178E of that statute. Registration applies regardless of where the conviction occurred. If someone was convicted in another state or in federal court and now lives in Middlesex County, they still must register with SORB within two days of establishing residency.

Level 2 and Level 3 offenders must verify their registration in person at a police station at least once per year. This requirement is laid out in MGL c.6, Section 178F1/2. The in-person verification is not optional. Offenders cannot mail in their annual update. They must appear in person, show identification, and confirm their current address and other registration details.

If an offender's address, employer, or school changes, they must notify SORB within two days. This applies to moves within Middlesex County and to moves out of the county or out of state. Failure to update registration information is a separate offense from failure to register initially.

Note: Transient offenders with no fixed address must register with the police department in the city or town where they spend the most time, which can complicate tracking in dense areas like Lowell or Cambridge.

Failure to Register: Penalties Under Massachusetts Law

Failing to register as a sex offender in Massachusetts is a serious criminal offense. Under MGL c.6, Section 178H, a first offense carries a jail term of six months to two and a half years in a house of correction, or up to five years in state prison. The law also allows for a fine of up to $1,000 on a first offense. These penalties apply to any offender who fails to register, fails to verify annually, or provides false information at registration.

A second offense is far more severe. Section 178H mandates a minimum five-year prison sentence for a second failure-to-register conviction. There is no suspended sentence or probation option for the mandatory minimum portion of that term. Prosecutors in Middlesex County take these cases seriously, and the Middlesex Superior Court at 200 Trade Center, Woburn, MA 01801, handles the more serious felony-level failures to register.

Law enforcement in Middlesex County conducts periodic compliance checks. Officers visit known addresses to verify that registered offenders still live where they claim. If an address does not match registration records, the case is referred to the District Attorney's office for possible prosecution.

District Attorney and Sex Crime Prosecution

The Middlesex District Attorney's Office prosecutes sex crimes and failure-to-register violations throughout the county. The DA's office works closely with local police departments and SORB to coordinate investigations and ensure that registered sex offenders remain in compliance. When violations occur, the DA's office decides whether to bring charges and handles prosecution through the Middlesex Superior Court or one of the county's district courts.

Sex crime cases in Middlesex County can be serious and complex. The DA's office has units dedicated to sexual assault and crimes against children. These units work with victim advocates from the start of a case through sentencing. If you are a victim of a sex crime in Middlesex County, the DA's office can connect you to resources and explain your rights throughout the legal process.

Victim Services and Support Resources

Victims of sex crimes in Middlesex County have access to a range of support services. The Middlesex DA's office provides victim-witness advocates who can assist throughout court proceedings. These advocates help victims understand the legal process, prepare for court, and access community resources after an assault.

SORB also makes information available to victims through the public records request process. If you are a victim and want information about an offender's current registration status that is not publicly available, you may be able to request it through formal channels. The SORB staff can guide you through that process by phone at (978) 740-6400.

The Massachusetts law about sex offenders page on mass.gov provides a plain-language summary of victim rights, registration rules, and how to access the registry. It is a good starting point if you are new to using these systems.

State and local victim advocacy organizations also serve Middlesex County residents. Many offer confidential counseling, legal advocacy, and safety planning at no cost. Contact the Cambridge or Lowell police non-emergency lines to ask for a referral to local victim services in your area.

Cities in Middlesex County

Several cities in Middlesex County have dedicated sex offender registry pages. The county includes many large communities, each served by its own police department for local registry inquiries.

Smaller towns in Middlesex County such as Billerica, Woburn, Watertown, Natick, and Marlborough do not have individual pages but are covered under the county-level registry through SORB and local police departments.

Nearby Counties

Middlesex County borders several other Massachusetts counties, each with their own sex offender registry resources.