Where to vote: Massachusetts voter lookup (state election office).
Registered voters, 2008-2024
EAVS counts, every two years.
Survey estimate: reported registration, 1972-2024
Current Population Survey: adults who said they were registered.
By county, 2024
EAVS 2024 by county-equivalent; citizens 18+ from the Census Bureau's 2020-2024 estimate. Massachusetts reports to the EAVS by town; towns are summed to their county through the county code in the EAVS jurisdiction FIPS.
| County | Registered | Active | Inactive | Citizens 18+ | Active, % of citizens 18+ |
|---|---|---|---|---|---|
| Barnstable County 15 towns | 196,803 | 179,210 | 17,593 | 189,558 | 94.5% |
| Berkshire County 32 towns | 100,759 | 86,999 | 13,760 | 105,339 | 82.6% |
| Bristol County 20 towns | 439,081 | 354,287 | 84,794 | 433,863 | 81.7% |
| Dukes County 7 towns | 17,192 | 15,895 | 1,297 | 15,850 | 100.3%* |
| Essex County 34 towns | 604,394 | 503,097 | 101,297 | 583,294 | 86.3% |
| Franklin County 26 towns | 58,258 | 53,772 | 4,486 | 57,530 | 93.5% |
| Hampden County 23 towns | 365,079 | 314,280 | 50,799 | 350,858 | 89.6% |
| Hampshire County 20 towns | 113,562 | 96,241 | 17,321 | 132,990 | 72.4% |
| Middlesex County 54 towns | 1,149,127 | 948,206 | 200,921 | 1,151,646 | 82.3% |
| Nantucket County | 10,128 | 10,128 | 0 | 10,653 | 95.1% |
| Norfolk County 28 towns | 537,962 | 472,958 | 65,004 | 529,430 | 89.3% |
| Plymouth County 27 towns | 419,825 | 389,556 | 30,269 | 404,007 | 96.4% |
| Suffolk County 4 towns | 504,226 | 426,730 | 77,496 | 553,603 | 77.1% |
| Worcester County 60 towns | 625,947 | 517,921 | 108,026 | 636,632 | 81.4% |
* Active registered voters exceed the Census estimate of citizens 18+: list maintenance or CVAP margin.
About these figures
Counts are what state election offices report to the US Election Assistance Commission (EAVS) after each November election; questions and state practice change between years. The share is active voters over the Census Bureau's citizen voting-age population estimate (CVAP). The survey line is self-reported (Current Population Survey) and kept separate from the office counts.
Massachusetts registers voters by party; its figures are not yet collected here.
The AVR mark is the year automatic voter registration was enacted in Massachusetts, from the Brennan Center's list.
Registration counts: US Election Assistance Commission, Election Administration and Voting Survey 2008-2024 (public domain).
Citizen voting-age population: US Census Bureau, CVAP special tabulation, 2020-2024 ACS (public domain). Survey estimate: US Census Bureau, Current Population Survey voting and registration tables A-5b and A-3b (public domain).
PollCheck US. Data through November 5, 2026. Photo credits