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Sex offenders by ZIP code in Massachusetts

232 Massachusetts ZIP codes, each with its own page, count and map — about 4,753 registered sex offenders we index across them. 01201 (Pittsfield) has the most, about 122; 02108 (Boston) has the highest rate, about 95.7 per 10,000 residents.

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Public registry information. It may not be used for employment, tenant, credit or insurance decisions, or to harass or threaten anyone.

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Sex offenders by ZIP code in Massachusetts by the numbers. What the Massachusetts ZIP figures say.

232
Massachusetts ZIP codes listed
4,753
registrants we index across them
01201
most registrants · Pittsfield · about 122
95.7
per 10,000 residents in 02108 (Boston), the highest rate
  • We publish a page for 232 Massachusetts ZIP codes, with about 4,753 registrants we index across them.
  • 01201 (Pittsfield) has the most registrants we index, about 122, in Berkshire County.
  • By rate, 02108 (Boston) is highest at about 95.7 per 10,000 residents, against a Massachusetts average of 5.9.
  • The ZIPs fall in 12 counties; Worcester County has the most listed, 46.

Counts are registrants we index with each ZIP code’s address as of October 2026, rounded and approximate — not an official figure. The figure moves continuously — search for the current picture on any specific person. Rates use the ACS 2019-2023 5-year estimate of residents for each ZIP, which has its own margin of error. Massachusetts sex offender statistics.

Massachusetts sex offender list by ZIP code, county by county. Every Massachusetts ZIP page we publish — 232 ZIP codes in 12 counties.

Each row is a ZIP code, the place it covers, the registrants we index with that ZIP and the rate per 10,000 residents. Open a ZIP for its own map, nearby ZIPs and the address check. Counties are A–Z; within a county the ZIP with the most registrants is first.

Berkshire County sex offender registry7 ZIP codes · about 214 registrants we index

Bristol County sex offender registry23 ZIP codes · about 610 registrants we index

Essex County sex offender registry21 ZIP codes · about 502 registrants we index

Franklin County3 ZIP codes · about 63 registrants we index

Hampden County sex offender registry22 ZIP codes · about 727 registrants we index

Hampshire County sex offender registry7 ZIP codes · about 100 registrants we index

Middlesex County sex offender registry37 ZIP codes · about 463 registrants we index

Norfolk County sex offender registry13 ZIP codes · about 134 registrants we index

Suffolk County sex offender registry22 ZIP codes · about 676 registrants we index

Worcester County sex offender registry46 ZIP codes · about 847 registrants we index

Sex offenders near your Massachusetts address: a ZIP-wide figure is not your street. How many live near your address?

Enter your address and you will see how many live near it.

Free. Next: a free account, then your count. No card.We don’t share your address or tell anyone you looked.

Checking a person instead? A Background Check is paid once — name plus where they live or work, across 58 registries and criminal records.Run a Background Check

Free: the count near your address. Optional: see everyone near it with one paid check, or watch it with Family Watch — what it costs is just below.

Public registry information. It may not be used for employment, tenant, credit or insurance decisions, or to harass or threaten anyone.

How to read Massachusetts sex offender counts by ZIP code. Four things to know before comparing two Massachusetts ZIPs.

01A ZIP code is a mail-delivery area, not a boundary a registry uses. One ZIP can cross city and county lines, and a Massachusetts address may be filed under a neighboring town’s name — so each ZIP is counted by the ZIP on the address, and the city and county pages count their own boundaries. The two will not add up exactly, and that is expected.
02The count is the registrants we index with that ZIP as of October 2026, rounded and approximate — not an official figure. It moves continuously as people are added, move, or are released from the requirement. Treat it as scale; for a specific person, run a search.
03The rate divides that count by the ZIP’s residents (ACS 2019-2023 5-year estimate), per 10,000. A small ZIP with a prison, a hospital or a shelter can carry a high rate on a handful of people, and a rate is shown only where the count is large enough to mean something. The Massachusetts average is about 5.9 per 10,000.
04A ZIP is listed when we index at least 5 registrants with it and it has at least 1,000 residents. A Massachusetts ZIP that is not on this page is not a ZIP with nobody registered — enter an address in it and the count near that address is free.

Massachusetts sex offenders by ZIP code FAQ. Quick answers before you open a ZIP.

Which Massachusetts ZIP code has the most registered sex offenders?

Of the 232 Massachusetts ZIP codes we publish, 01201 (Pittsfield) has the most registrants we index, about 122 (Berkshire County). By rate, 02108 (Boston) is highest at about 95.7 per 10,000 residents. Large ZIPs usually have large counts, so the per-10,000 figure beside each ZIP is the fairer comparison.

How many Massachusetts ZIP codes are on this sex offender list?

232, holding about 4,753 registrants we index between them, across 12 counties. A ZIP is listed when we index at least 5 registrants with that ZIP and it has at least 1,000 residents. A ZIP that is not listed is not a ZIP with nobody registered — search from an address in it for the current picture.

Is there an official Massachusetts sex offender list by ZIP code?

Registries are kept by the state, not by ZIP code, so Massachusetts publishes no official list by ZIP. This page counts the registrants we index whose address carries each ZIP, as of October 2026, rounded and approximate. A search from any Massachusetts address shows who is registered around it, each record linking to its official registry entry.

How do I find sex offenders near my Massachusetts address?

Open your ZIP code's page, or enter a street address in Massachusetts and create a free account to see how many registered sex offenders live near it. To see everyone near it — names, photographs, offenses and exact addresses — it is paid once, or Family Watch for 3 addresses with an email when someone moves in or out. Checking a person instead? A Background Check is paid once — name plus where they live or work, across 58 registries and criminal records.

Check your own Massachusetts address for registered sex offenders

The count of registered sex offenders near your address is free.

Free. Next: a free account, then your count. No card.We don’t share your address or tell anyone you looked.

Checking a person instead? A Background Check is paid once — name plus where they live or work, across 58 registries and criminal records.Run a Background Check

Free: the count near your address. Optional: see everyone near it with one paid check, or watch it with Family Watch — what it costs is just below.

Public registry information. It may not be used for employment, tenant, credit or insurance decisions, or to harass or threaten anyone.

Sex offenders in Massachusetts: the state page and more. The Massachusetts registry, its statistics and how to search it.

Massachusetts sex offender registryMassachusetts sex offender statisticsHow to search sex offenders in MassachusettsMassachusetts trick-or-treat safetySex offenders near meSex offender mapFamily Watch: an email when someone moves in

Sex offenders in Massachusetts cities. 25 Massachusetts city pages, each with its own count and map.

Boston sex offendersSpringfield sex offendersWorcester sex offendersNew Bedford sex offendersFall River sex offendersLawrence sex offendersTaunton sex offendersLynn sex offendersBrockton sex offendersLowell sex offendersChicopee sex offendersHaverhill sex offendersRevere sex offendersPeabody sex offendersCambridge sex offendersMalden sex offendersQuincy sex offendersEverett sex offendersFramingham sex offendersMethuen Town sex offendersSomerville sex offendersWaltham sex offendersWeymouth Town sex offendersMedford sex offendersNewton sex offenders

Search sex offenders in any Massachusetts ZIP code — and everywhere else — right now

See how many registered sex offenders live near your address — free, no card. Checking a person instead? A Background Check is paid once — name plus where they live or work, across 58 registries and criminal records.

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