Where to vote: Connecticut voter lookup (state election office).
Registered voters, 2008-2024
EAVS counts, every two years.
Survey estimate: reported registration, 1976-2024
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. Connecticut's counties are the legacy Census counties; the 2020-2024 citizen estimate is published for planning regions only.
| County | Registered | Active | Inactive | Citizens 18+ | Active, % of citizens 18+ |
|---|---|---|---|---|---|
| Fairfield 23 towns | 642,410 | 580,364 | 62,046 | ||
| Hartford 29 towns | 631,788 | 584,882 | 46,906 | ||
| Litchfield 26 towns | 141,322 | 129,321 | 12,001 | ||
| Middlesex 15 towns | 132,147 | 119,418 | 12,729 | ||
| New Haven 27 towns | 578,170 | 518,625 | 59,545 | ||
| New London 21 towns | 196,125 | 179,307 | 16,818 | ||
| Tolland 13 towns | 114,602 | 105,041 | 9,561 | ||
| Windham 15 towns | 84,086 | 75,860 | 8,226 |
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.
Connecticut registers voters by party; its figures are not yet collected here.
The AVR mark is the year automatic voter registration was enacted in Connecticut, 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