Find Cambridge Sex Offenders
Cambridge has a large number of registered sex offenders tracked by the state Sex Offender Registry Board. The city sits in Middlesex County and is home to both Harvard and MIT, which adds a layer of federal campus law to the local registry picture. You can search for sex offenders in Cambridge through the free SORB online portal or by calling the Cambridge Police Department directly. This page covers how to run a search, what records are public, and what Cambridge residents should know about sex offender registration rules in their city. SORB keeps the public database up to date as offenders move in or out of the area.
Cambridge Overview
Cambridge Sex Offender Search Online
The quickest way to look up sex offenders in Cambridge is through the SORB online search portal. This is the same tool used for any city in Massachusetts. Type in "Cambridge" or a Cambridge zip code and the portal returns a list of Level 2 and Level 3 offenders who live there. Each result shows the person's name, photo, home address, and the sex offense that put them on the list. The search is free. You do not need to make an account or give your name to use it.
Level 1 offenders will not show up. That is state law. Only Level 2 and Level 3 records are open to the public. If you want to check on a specific person and they are Level 1, you will not find them in this portal or through any public request at the police station.
The Sex Offender Registry Board runs the database and updates it as offenders register, move, or change status. You can also call SORB at (978) 740-6400 or use the toll-free line at 1-800-93-MEGAN to ask about a specific person by phone. Phone staff can tell you if someone is on the registry and what level they are classified at, as long as the record is public.
The Cambridge Police Department site at cambridgepolice.org provides local public safety resources and contact information for registry inquiries in Cambridge.
The department handles in-person registry requests and works with SORB on community notification for Level 3 offenders in the city.
Cambridge Police and In-Person Access
The Cambridge Police Department is at 125 6th Street, Cambridge, MA 02142. The main number is (617) 349-3300. You can walk in and ask for sex offender registry data on any person who lives in Cambridge. Officers have access to the full SORB database and can pull up records on the spot. This is useful for checking on Level 2 offenders who were classified before July 12, 2013, since those older records sometimes do not appear in the online search tool.
You do not need to explain why you want the information. It is public.
Cambridge police also handle community notification when a Level 3 sex offender moves into the city. Level 3 is the highest risk classification. When someone at that level registers a Cambridge address, the police department may put out flyers or post notices in the neighborhood where the person is going to live. This does not happen for Level 2 offenders. For Level 2, you have to search on your own through the SORB portal or by visiting the station.
Note: In-person requests at Cambridge PD are handled during regular business hours at the records desk.
Sex Offender Levels in Cambridge
Massachusetts uses three risk levels for sex offenders. The level determines how much the public can see. Level 1 is low risk. Those records are sealed from public view entirely. You cannot look them up online, and the police will not share them if you ask. Level 2 is moderate risk. Level 3 is high risk. Both Level 2 and Level 3 records are public in Cambridge and every other city in the state.
The classification process is run by SORB, not by local police. After a conviction, SORB holds a hearing and assigns a level based on the offense, the person's criminal history, and a risk score. The offender can challenge the classification, and the whole process can take months. Once a level is set, the information goes into the public database if the person is Level 2 or 3. Cambridge police get notified when a registered offender moves into the city so they can keep their local records current and handle any required community notification.
Cambridge has a mix of Level 2 and Level 3 offenders. The exact count changes as people move in and out of the city or age off the registry. You can get a current count by searching Cambridge in the SORB portal and scrolling through the results.
A full breakdown of how Massachusetts classifies sex offenders is available at mass.gov/info-details/massachusetts-law-about-sex-offenders, covering all three levels and the hearing process.
This page also explains what rights offenders have during the classification hearing and how to appeal a level assignment.
Registration Rules for Cambridge
Anyone convicted of a sex offense under Massachusetts General Laws Chapter 6, Sections 178C through 178Q must register with SORB. This applies to people who live in Cambridge, work in Cambridge, or go to school in Cambridge. If someone moves to Cambridge from out of state, they have three days to register after they arrive. If a registered offender changes their address within the city, they must update SORB within two days.
People released from prison or a treatment center must register before release or within two days of getting to their Cambridge address. There is no grace period beyond that. Missing the deadline is a crime. A first offense for failing to register can mean up to five years in state prison. A second offense carries a mandatory minimum of five years. These are not fines. They are prison sentences.
Registered sex offenders in Cambridge must also verify their information in person each year. Level 2 and Level 3 offenders go to the Cambridge Police Department and confirm that their name, address, and other details are still correct. If anything has changed and they did not report it, that is a separate violation on top of the verification failure.
Harvard, MIT, and Campus Sex Offender Rules
Cambridge is home to Harvard University and the Massachusetts Institute of Technology. Both are subject to the federal Campus Sex Crimes Prevention Act. This law requires any sex offender who is enrolled at, employed by, or volunteers at a college to notify SORB of their connection to the school. SORB then shares that information with the institution, and the school must make it available to students and staff who ask for it.
Harvard and MIT both have their own police departments. The Harvard University Police Department and the MIT Police work alongside Cambridge PD on public safety matters, including sex offender compliance. If a registered offender is connected to either campus, the campus police will have that information on file. Students or staff who want to check can ask the campus police or search the SORB portal.
This matters more in Cambridge than in most cities because of the sheer number of students and employees cycling through these campuses each year. The law is meant to make sure that campus communities are not in the dark about registered sex offenders in their midst. It applies to all colleges, not just Harvard and MIT, but those two are by far the largest in Cambridge.
The SORB search portal at sorb.chs.state.ma.us lets you search by city name or zip code, including all Cambridge neighborhoods.
Results include the offender's current address, photo, classification level, and the offense that led to their registration.
Other Ways to Search Cambridge Sex Offenders
The National Sex Offender Public Website (NSOPW) is a federal search tool that pulls from every state registry at once. If you want to check whether someone has records in Massachusetts and other states, this is the place to go. It draws data directly from SORB, so the Cambridge results will match what you see on the state portal.
NSOPW is run by the U.S. Department of Justice. It is free to use and does not need an account. You can search by name, location, or both. The site also has resources for parents and community groups looking for safety information beyond what the state registry offers. For Cambridge residents who want to check on someone who may have lived in another state before moving here, NSOPW fills that gap.
Note: NSOPW results link back to each state's own registry, so you may be redirected to SORB for full details on Massachusetts offenders.
Courts Handling Cambridge Cases
Sex offense cases involving Cambridge go through the Middlesex County court system. The Cambridge District Court at 4040 Mystic Valley Parkway, Medford, MA 02155 handles many criminal matters at the district level. More serious felony cases go to Middlesex Superior Court in Woburn or the Lowell courthouse. The Middlesex County District Attorney's Office prosecutes sex crimes in the county and can be reached at (781) 897-8300.
When someone is convicted in Middlesex County and receives a sentence that includes registration, SORB begins the classification process. The court does not set the sex offender level. That is SORB's job. The court handles the criminal case. SORB handles everything related to the registry after conviction. This split means that even after a case is closed, the offender's obligations to the registry continue for years or for life depending on the offense.
Middlesex County Sex Offender Resources
Cambridge is in Middlesex County. The county page has more information on courts, the sheriff's office, and other Middlesex County resources tied to sex offender registration and public safety records.
Nearby Cities
These Massachusetts cities near Cambridge also have sex offender registry information available through SORB.