​​​​​​Oregon will hold a statewide primary election on May 19, 2026.

​In Oregon, major political parties nominate their party candidates at the Primary Election. Major parties have the option of choosing a closed primary, meaning only voters registered with that party can vote for candidates of the same party. Those nominees then appear on the November General Election ballot. All registered voters can participate in the General Election, regardless of their party affiliation. 

All voters, regardless of party affiliation, will be able to vote for non-partisan races and for measures, if any, at the Primary Election.

Learn more about voting in Oregon here​.

Important Election Dates

September 4, 2025
Last day for partisan elected incumbent candidate seeking re-election to the same office to register as member of major political party to satisfy 180-day membership requirement.

September 11, 2025
First day for major party or nonpartisan candidate to file declaration of candidacy or nominating petition for 2026 Primary Election. Includes precinct committeeperson.

September 11, 2025
First day to file state voters' pamphlet candidate statement or measure argument prospective petition.

September 11, 2025
Last day for partisan candidate to register as member of major political party to satisfy 180-day membership requirement.

March 3, 2026
Last day for Elected Incumbent candidate for major party or nonpartisan office to file declaration of candidacy or nominating petition.

March 10, 2026
Last day for all major party or nonpartisan candidates (other than Elected Incumbents) to file declaration of candidacy or nominating petition.

March 12, 2026
Last day for candidate, who files candidacy with county clerk, to file statement for county voters' pamphlet.
Last day to file or withdraw candidate statements or measure arguments for state voters' pamphlet.​

March 13, 2026
Last day for candidate, other than district candidate, to withdraw from 2026 Primary Election.​

April 28, 2026
Last day to register to vote or change party affiliation. Registration cards postmarked by this date or submitted online no later than 11:59 pm are valid.

April 29, 2026
First day ballots are mailed to voters

May 19, 2026
Election Day. County Clerk's offices open 7 am - 8 pm. Official dropsites open until 8 pm. Last day for voter to return ballot. Ballots that are mailed must be postmarked by election day. Ballots deposited in an official drop box much be received by 8pm.

June 25, 2026
Final election results certified.

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