Primary Rules
How Connecticut's Primary Works
Connecticut uses a Closed Primary system
Closed Primary
Only voters registered with a political party can vote in that party's primary election. Independent and unaffiliated voters are excluded.
Voter file data: L2 Data · Registration counts: Connecticut Secretary of State · Updated May 4, 2026
Connecticut Voter Registration
& Party Affiliation Statistics
Total Registered
2,358,527
Largest Party
Democratic (35.05%)
Independent / NPP
43.89%
Primary Type
Closed Primary
At a Glance
Connecticut at a Glance
Key voter registration statistics · Updated 2026
Registered Voters
2,358,527
across 8 counties
Registration Rate
83.3%
eligible population
No Party Preference
43.89%
of registered voters
2024 Turnout
67.1%
of eligible voters
Registration
Voter Registration by Party
How many registered Democrats, Republicans, and Independents are in Connecticut?
Democratic35.05%
Republican21.06%
Independent/Other43.89%
| Party | Registered Voters | % of Total |
|---|---|---|
Democratic | 826,670 | 35.05% |
Republican | 496,715 | 21.06% |
Independent/Other | 1,035,142 | 43.89% |
Turnout
Voter Turnout in Connecticut
How many eligible Connecticut residents actually vote?
Eligible vs Registered
2,358,527 registered2,830,232 eligible
Recent Elections
| Election | Turnout | Voted |
|---|---|---|
| 2024 General | 67.1% | 1,788,981 |
| 2022 General | 48.6% | 1,297,811 |
| 2020 General | 70.1% | 1,861,086 |
| 2024 Presidential Primary | 4.7% | 110,147 |
| 2024 State Primary | No statewide aggregate — closed primary, only contested local races held | — |
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