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This site uses external data sources such as the New York Times.
We do not validate the consistency or quality of the data. Data from different sources present slightly different numbers as there is no centralized collection source for the data. Please visit CDC and other public websites for the latest information on COVID-19. This site is a privately funded effort and only offered to the public as a free resource. We are doing this to help our neighbors navigate these strange times. Use this information AS-IS without any warranty.
| RANK | COUNTY | POPULATION Est. by US Census |
CASES | DEATHS | % OF POPULATION AFFECTED |
% OF ALL CASES IN MA |
% OF ALL DEATHS IN MA |
| 1 | Middlesex | 1,611,699 | 235,997 | 4,157 | 14.643% | 20.37% | 20.28% |
| 2 | Essex | 789,034 | 162,507 | 2,759 | 20.596% | 14.03% | 13.46% |
| 3 | Suffolk | 803,907 | 154,591 | 2,017 | 19.230% | 13.35% | 9.84% |
| 4 | Worcester | 830,622 | 140,726 | 2,611 | 16.942% | 12.15% | 12.74% |
| 5 | Bristol | 565,217 | 114,368 | 2,097 | 20.234% | 9.87% | 10.23% |
| 6 | Norfolk | 706,775 | 96,227 | 1,975 | 13.615% | 8.31% | 9.64% |
| 7 | Hampden | 466,372 | 96,130 | 1,781 | 20.612% | 8.30% | 8.69% |
| 8 | Plymouth | 521,202 | 88,162 | 1,697 | 16.915% | 7.61% | 8.28% |
| 9 | Barnstable | 212,990 | 26,492 | 566 | 12.438% | 2.29% | 2.76% |
| 10 | Hampshire | 160,830 | 17,157 | 355 | 10.668% | 1.48% | 1.73% |
| 11 | Berkshire | 124,944 | 14,689 | 349 | 11.756% | 1.27% | 1.70% |
| 12 | Franklin | 70,180 | 6,198 | 134 | 8.832% | 0.54% | 0.65% |
| 13 | Dukes | 17,332 | 2,580 | 0 | 14.886% | 0.22% | 0% |
| 14 | Nantucket | 11,399 | 2,477 | 0 | 21.730% | 0.21% | 0% |
Mortality rate between 2-3% (blue), 3% or more (red)
1. Percent of total cases in Massachusetts. 2. Percent of total deceased in Massachusetts 3. Mortality rate of the county