Map the Block › Places › Massachusetts › Plymouth County
What are the crime rate and median income in Plymouth County, Massachusetts?
Plymouth County averaged 2.8 reported violent crimes per 1,000 residents a year in 2021-2025, 12% lower than the Massachusetts rate (3.1). Median household income is $114,201 and the unemployment rate was 4.5% in August 2026. It is home to roughly 535,075 residents.
Last updated . Crime: FBI 2021-2025. Income and housing: Census ACS 2020-2024. Unemployment: BLS August 2026. Road work: October 11, 2026.
Also on the map: income · hazard risk · Superfund · dams
What is the crime rate in Plymouth County?
From 2021 through 2025, Plymouth County averaged 1,487 reported violent crimes a year, along with 4,176 property crimes. The violent rate, 2.8 per 1,000 people, is 12% lower than the Massachusetts rate (3.1); nationally it is 3.7. Burglary, theft and car theft together come to 7.7 per 1,000 residents, compared with 10.7 across Massachusetts. Aggravated assaults make up 80% of the violent total. CDC death records show about 11 homicide deaths a year in the county (2.1 per 100,000), a count that includes cases police may classify differently.
| Offense (yearly average, 2021-2025) | Plymouth County | Per 1,000 | Massachusetts per 1,000 | U.S. per 1,000 |
|---|---|---|---|---|
| Violent crime | 1,487 | 2.8 | 3.1 | 3.7 |
| Murder | 11 | 0.02 | 0.02 | 0.06 |
| Rape | 185 | 0.34 | 0.28 | 0.40 |
| Robbery | 100 | 0.19 | 0.37 | 0.62 |
| Aggravated assault | 1,191 | 2.2 | 2.5 | 2.6 |
| Property crime | 4,176 | 7.7 | 10.7 | 18.1 |
| Burglary | 578 | 1.1 | 1.3 | 2.4 |
| Larceny-theft | 2,935 | 5.4 | 8.4 | 13.0 |
| Motor vehicle theft | 663 | 1.2 | 1.0 | 2.6 |
Most crime never reaches the police, so these are reported crimes, a floor rather than the full count. In 2024 about half of violent crimes (48%) and about 3 in 10 property crimes (31%) were reported to police (U.S. Justice Department, National Crime Victimization Survey). Rates also depend on how completely each agency reports to the FBI. County figures add up the city police and sheriff reports in the county (27 agencies; 100% of residents covered).
What is the median household income in Plymouth County?
Half of households in Plymouth County make more than $114,201 and half make less; across Massachusetts the midpoint is $103,960. Owner-occupied homes have a median value of $556,000, and the median rent is $1,747 a month. 12.7% of households received SNAP benefits in the past year (state: 14.7%). The newest monthly figure from the Bureau of Labor Statistics is 4.5% for August 2026 (preliminary), with 13,097 people out of work and looking.
| Census ACS 2020-2024 | Plymouth County | Massachusetts | United States |
|---|---|---|---|
| Population | 535,075 | 7,044,056 | 334,922,499 |
| Median household income | $114,201 | $103,960 | $80,734 |
| Median home value (owner-occupied) | $556,000 | $562,100 | $332,700 |
| Median gross rent | $1,747 | $1,762 | $1,413 |
| Unemployment rate (2020-2024 average) | 5.1% | 5.2% | 5.2% |
| People below the poverty line | 7.1% | 10.0% | 12.5% |
| Households receiving SNAP (food stamps) | 12.7% | 14.7% | 12.1% |
| Adults 25+ with a bachelor's degree or higher | 41.8% | 47.3% | 35.7% |
| Homeowner households | 77.6% | 62.5% | 65.2% |
| Median age | 43.0 | 40.0 | 38.9 |
| Households with broadband internet | 92.9% | 92.8% | 91.0% |
| People without health insurance | 2.5% | 2.6% | 8.4% |
What natural hazards and environmental sites are in Plymouth County?
FEMA's National Risk Index rates the overall natural-hazard risk for Plymouth County as “Relatively Moderate”. Of the seven hazards on our map, FEMA rates these highest: coastal flooding (Very High). The index compares counties with each other and also weighs how vulnerable and resilient a community is, so it is a long-run estimate, not a forecast.
Superfund sites
No active Superfund site is listed in Plymouth County. 2 former sites have finished cleanup and been taken off EPA's National Priorities List: Cannon Engineering Corp. (Cec) and Plymouth Harbor/Cannon Engineering Corp.. A listing means EPA is managing a long-term cleanup; it does not by itself mean anyone is exposed today.
High-hazard dams
The National Inventory of Dams lists 11 high-hazard dams in Plymouth County. 5 are rated Poor or Unsatisfactory in condition, 6 Satisfactory or Fair. Tallest on the list: Foundry Pond Dam (25 ft) and First Herring Brook Reservoir Dam (22 ft). “High hazard” describes what lies downstream (people would probably die if the dam failed), not how likely the dam is to fail.
Industrial chemical releases
15 facilities in the county filed Toxics Release Inventory reports for 2024, together reporting 37,644 pounds of listed chemicals released on site. Reported releases are legal permitted amounts in most cases.
Disasters, air and water
Plymouth County was covered by 2 federal major disaster declarations from 2016 through 2025 (Snowstorm 1, Severe Storm 1), not counting COVID-19. In 2024, 0 of 366 monitored days had an air quality index of “unhealthy for sensitive groups” or worse (EPA). Of 45 community water systems, 3 had an open health-based drinking-water violation in EPA's records (September 2026). EPA puts the county in radon zone 2 (moderate). NHTSA counted 40 traffic deaths in the county in 2024, including 6 pedestrians.
Is there road construction in Plymouth County?
On October 11, 2026 the state transportation feed listed 36 highway work zones in Plymouth County (3 active that day). Listed roads include RT-3A, I-495 and RT-25. 5 are on interstates. The map's construction layer is refreshed every morning.
See today's work zones on the map →
How many schools, nursing homes and parks are in Plymouth County?
Federal school lists show 137 public and 22 private schools in the county. 27 nursing homes are certified by Medicare or Medicaid here; star ratings for each are on the map and on Medicare's Care Compare. USGS mapping shows 65 fire or EMS stations and 31 police or sheriff stations. Park Service units in the area: Boston Harbor Islands National Recreation Area. 5 state parks or recreation areas: Ames Nowell State Park, Cushing Memorial State Park, Ellisville Harbor State Park, Pilgrim Memorial State Park and Wompatuck State Park.
Gun shops, liquor stores and Planned Parenthood in Plymouth County
Gun shops
8 gun shops with a public storefront are on the map in Plymouth County, plus 15 more licensed dealers without a public storefront (not shown). On the ATF list: Assawompset Arms Company (Lakeville), Bachant Armament Corporation (Lakeville), Brophy's Fine Firearms (Middleboro), Derr Precision (Marshfield), Middleboro Gun Shop (Middleboro), Outback Arms LLC (Plympton), T C's Gun Shop (Halifax) and The Gunrunner LLC Firearms And Training Center (Middleboro).
Liquor stores
108 liquor stores are on the map in Plymouth County: 1458 Liquors (Hanson), 1666 Liquors (Brockton), A Street Liquors (Hull), Abington Liquors (Abington), Adrian's Package Store Inc (Rochester), Anchor Liquors (Wareham), Bennett's General Store (Duxbury), Bernier's Liquors (Bridgewater) and 100 more. Massachusetts has no complete public liquor licence list we can use, so this count also draws on OpenStreetMap and Overture Maps and may miss some stores or include closed ones.
Planned Parenthood
There is no Planned Parenthood health center in Plymouth County on the map.
See them on the map: gun shops · liquor stores →
Sources: ATF licensee list (Sept 2026); state liquor licence lists, OpenStreetMap and Overture Maps (non-official; partial in some states); HHS Title X directory and CMS NPPES.
Common questions
What is the crime rate in Plymouth County?
Plymouth County averaged 1,487 reported violent crimes a year in 2021-2025, or 2.8 per 1,000 residents, 12% lower than the Massachusetts rate (3.1). The property-crime rate was 7.7 per 1,000 (FBI Uniform Crime Reporting).
What is the median household income in Plymouth County?
$114,201 (Census American Community Survey, 2020-2024 average), compared with $103,960 for Massachusetts and $80,734 nationally.
What is the unemployment rate in Plymouth County?
The newest monthly figure from the Bureau of Labor Statistics is 4.5% for August 2026 (preliminary), with 13,097 people out of work and looking.
What natural hazards affect Plymouth County?
FEMA's National Risk Index rates the overall natural-hazard risk for Plymouth County as “Relatively Moderate”. Of the seven hazards on our map, FEMA rates these highest: coastal flooding (Very High).
Are there Superfund sites in Plymouth County?
No active Superfund site is listed in Plymouth County. 2 former sites have finished cleanup and been taken off EPA's National Priorities List: Cannon Engineering Corp. (Cec) and Plymouth Harbor/Cannon Engineering Corp..
Is there road construction in Plymouth County right now?
On October 11, 2026 the state transportation feed listed 36 highway work zones in Plymouth County (3 active that day). Listed roads include RT-3A, I-495 and RT-25. 5 are on interstates.
How many nursing homes are in Plymouth County?
27 Medicare- or Medicaid-certified nursing homes (CMS provider data, September 2026).
How does Plymouth County compare with neighboring counties?
| County | Population | Violent crimes per 1,000 (2021-25) | Median household income |
|---|---|---|---|
| Barnstable County | 231,668 | 2.7 | $95,241 |
| Bristol County | 582,270 | 3.8 | $85,625 |
| Norfolk County | 730,082 | 1.8 | $130,739 |
Cities in Plymouth County with their own page: Brockton.
More: Massachusetts statewide numbers · Sex-offender registry search (U.S. Justice Department, NSOPW)
Where do these numbers come from?
- Crime: FBI Uniform Crime Reporting 2021-2025 (agency level, Return A), averaged and summed by county by Map the Block; Census population; state and national rates: FBI estimated crimes 2021-2025.
- Income, housing, education: U.S. Census Bureau, American Community Survey 2020-2024 5-year, table B19013 (median household income) and related tables.
- Monthly unemployment: U.S. Bureau of Labor Statistics, Local Area Unemployment Statistics (LAUS), county data, not seasonally adjusted. Public domain.
- Hazards: FEMA National Risk Index v1.20 (December 2025), county scores; disasters: FEMA OpenFEMA Disaster Declarations Summaries.
- Superfund: U.S. EPA, Superfund site boundaries and NPL status (October 2026). Dams: U.S. Army Corps of Engineers, National Inventory of Dams (public map service, October 2026). Chemical releases: U.S. EPA Toxics Release Inventory, reporting year 2024 (basic data file).
- Air and water: U.S. EPA AirData, annual AQI by county 2024; EPA Air Quality Design Values 2023-2025 (June 2026); U.S. EPA SDWIS via ECHO drinking-water download (September 30, 2026). Traffic deaths: NHTSA Fatality Analysis Reporting System (FARS) 2024; Census population.
- Work zones: State departments of transportation, via the U.S. DOT Work Zone Data Exchange (WZDx) and state 511 feeds; refreshed every morning (snapshot October 11, 2026).
- Schools: National Center for Education Statistics, EDGE public school locations 2024-25; budgets: U.S. Census Bureau, Annual Survey of School System Finances, fiscal year 2024; National Center for Education Statistics, EDGE Private School geocodes (Private School Survey 2023-24). Nursing homes: U.S. Centers for Medicare & Medicaid Services, Nursing Home Provider Information and Penalties (September 2026). Stations: U.S. Geological Survey, National Structures Dataset (Fire Stations/EMS Stations), October 2026 pull.
- Parks: USGS Protected Areas Database of the U.S. (PAD-US 4.1); state park agencies' open data (CA, NY, PA, TN, TX, FL, NJ, KY, HI, UT, MT and others); OpenStreetMap contributors for some hours, phones, fees and camping; U.S. National Park Service: unit boundaries (Land Resources Division), Acreage Report (Sept 30, 2026), park pages on nps.gov (hours, fees), Visitor Use Statistics (2025).
Map the Block shows public statistics about places, not people, and does not rate or rank neighborhoods as places to live. Figures are as published by each source; check the source before relying on a number.
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