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Voter file data: L2 Data · Registration counts: Oregon Secretary of State · Updated May 4, 2026

Oregon Voter Registration

& Party Affiliation Statistics

Total Registered
3,430,521
Largest Party
Democratic (31.13%)
Independent / NPP
46.27%
Primary Type
Closed Primary
OverviewRegistrationPrimary RulesTurnout
At a Glance

Oregon at a Glance

Key voter registration statistics · Updated 2026

Registered Voters
3,430,521
across 36 counties
Registration Rate
83.3%
eligible population
No Party Preference
46.27%
of registered voters
2024 Turnout
71.9%
of eligible voters
Registration

Voter Registration by Party

How many registered Democrats, Republicans, and Independents are in Oregon?

31.13%
22.6%
46.27%
Democratic31.13%
Republican22.6%
Independent/Other46.27%
PartyRegistered Voters% of Total
Democratic
1,067,88531.13%
Republican
775,39622.6%
Independent/Other
1,587,24046.27%
Primary Rules

How Oregon's Primary Works

Oregon 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.
How It Works
Voters must register with a party, often weeks or months before the election, to participate. If you're registered as independent or unaffiliated, you cannot vote in either major party's primary.
IVP's Position
Closed primaries lock millions of independent voters out of the elections that matter most. In many districts, the primary is the only competitive election.
See all primary systems by state →
Turnout

Voter Turnout in Oregon

How many eligible Oregon residents actually vote?

Eligible vs Registered
83.3% registered
3,430,521 registered4,116,625 eligible
686,104 eligible residents are not registered to vote.
Recent Elections
ElectionTurnoutVoted
2024 General71.9%2,308,256
2022 General62.4%1,997,689
2020 General75.3%2,413,890
2024 Presidential Primary22.7%778,423
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