Massachusetts Power Outage History
14 counties tracked, 2014–2025. County-level reliability grades and outage frequency below.
Counties tracked
14
Avg national percentile
69th
Higher = more reliable
Grade F counties
0
County rankings (worst to best)
| County | Grade | National percentile |
|---|---|---|
| Barnstable County | D | 37th |
| Plymouth County | C | 47th |
| Nantucket County | C | 47th |
| Essex County | C | 50th |
| Worcester County | C | 55th |
| Middlesex County | B | 64th |
| Dukes County | B | 67th |
| Norfolk County | B | 73rd |
| Bristol County | B | 78th |
| Hampden County | B | 79th |
| Franklin County | A | 85th |
| Berkshire County | A | 89th |
| Hampshire County | A | 91st |
| Suffolk County | A | 96th |