Primary Rules
How Indiana's Primary Works
Indiana uses a Open Primary system
Open Primary
Any registered voter can vote in any party's primary, regardless of their own party affiliation or registration status.
Registration counts: Voter Count · Updated November 14, 2026
Indiana Voter Registration
& Party Affiliation Statistics
Total Registered
4,426,696
Most Active Primary Party
Independent (43.57%)
Independent / NPP
43.57%
Primary Type
Open Primary
All data provided by
(opens votercount.ai in a new tab)The only AI tool connected to L2’s industry-leading national voter file.
Ask about any county, age group, or district in Indiana, in plain English, and get answers in seconds.
At a Glance
Indiana at a Glance
Key voter registration statistics · Updated 2026
Registered Voters
4,426,696
across 92 counties
Independent / NPP
1.9M
43.57% of registered
2024 Turnout
59.1%
of eligible voters
50.70% of voters in Elkhart County have no modeled party lean, compared with 43.57% across Indiana. That's the highest share of any Indiana county with at least 50,000 voters. Indiana doesn't register voters by party, so these figures are modeled.
Answered directly from the voter file with Voter Count
Primary Participation
Primary Ballot Participation by Party
Indiana does not register voters by party. The breakdown below is modeled from recent primary ballot history.
Democratic25.7%
Republican30.3%
Independent43.6%
Other0.4%
| Party | Registered Voters | % of Total |
|---|---|---|
Democratic | 1,139,373 | 25.7% |
Republican | 1,341,853 | 30.3% |
Independent | 1,928,576 | 43.6% |
Other | 16,894 | 0.4% |
Note: Indiana does not collect party affiliation at voter registration. These figures are modeled from L2 voter-file analysis of which primary ballot each voter pulled in recent cycles — they reflect primary participation, not party registration.
Turnout
Voter Turnout in Indiana
How many eligible Indiana residents actually vote?
Recent Elections
| Election | Turnout | Voted |
|---|---|---|
| 2024 General | 59.1% | 2,976,581 |
| 2022 General | 37.2% | 1,880,755 |
| 2020 General | 61.1% | 3,068,542 |
| 2024 Presidential Primary | 13.5% | 593,211 |
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All data provided by
(opens votercount.ai in a new tab)The only AI tool connected to L2’s industry-leading national voter file.
Ask about any county, age group, or district in Indiana, in plain English, and get answers in seconds.