Primary Rules
How Wisconsin's Primary Works
Wisconsin 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 11, 2026
Wisconsin Voter Registration
& Party Affiliation Statistics
Total Registered
4,970,589
Most Active Primary Party
Republican (37.66%)
Independent / NPP
31.27%
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 Wisconsin, in plain English, and get answers in seconds.
At a Glance
Wisconsin at a Glance
Key voter registration statistics · Updated 2026
Registered Voters
4,970,589
across 72 counties
Independent / NPP
1.6M
31.27% of registered
2024 Turnout
76.7%
of eligible voters
48.84% of voters in Manitowoc County have no modeled party lean, compared with 31.27% across Wisconsin. That's the highest share of any Wisconsin county with at least 50,000 voters. Wisconsin 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
Wisconsin does not register voters by party. The breakdown below is modeled from recent primary ballot history.
Democratic31.1%
Republican37.7%
Independent31.3%
Other0.0%
| Party | Registered Voters | % of Total |
|---|---|---|
Democratic | 1,544,263 | 31.1% |
Republican | 1,872,052 | 37.7% |
Independent | 1,554,274 | 31.3% |
Other | 0 | 0.0% |
Note: Wisconsin 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 Wisconsin
How many eligible Wisconsin residents actually vote?
Recent Elections
| Election | Turnout | Voted |
|---|---|---|
| 2024 General | 76.7% | 3,437,142 |
| 2022 General | 60.2% | 2,673,154 |
| 2020 General | 75.0% | 3,310,000 |
| 2024 Presidential Primary | 12.1% | 601,296 |
| 2024 State Primary | 26.0% | 1,200,000 |
Primary turnout figures reflect all voters regardless of party registration. Source: each state’s Secretary of State Statement of Vote.
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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 Wisconsin, in plain English, and get answers in seconds.