Idaho Election Dates and Deadlines
Welcome to the Idaho Election Dates and Deadlines listing from U.S. Vote Foundation.
Here you can find out when Idaho elections will be held at the local, state and federal election level. There are many different deadlines associated with Idaho elections, such as voter registration deadlines, absentee ballot request and ballot return deadlines, date ranges for early voting, and in-person voting options. No matter the type of election, or whether you are voting at home or voting from abroad, this service will provide you with comprehensive election dates and deadlines for your voting state of Idaho.
Idaho Federal and State Elections
Tue May 19, 2026 - Idaho Congressional Primary Election
Voter Registration Deadline
- In the Election Office by
Fri May 8, 2026 - Online by
Fri May 8, 2026 - Post Received by
Fri May 8, 2026 - Election Day Registration & Voting
Tue May 19, 2026
Absentee Ballot Request Deadline
- Request for Postal Ballot by
Fri May 8, 2026 5:00PM - Emergency Ballot Period
Voters who are physically unable to vote in person on Election Day because of an emergency hospitalization may request an emergency ballot. Contact your Local Election Office for more details.
From Thu May 14, 2026 to Mon May 18, 2026
Absentee Ballot Return Deadline
Received byTue May 19, 2026 8:00PM
Early Voting Available
- Early Voting
Early Voting varies by county. Contact your local election office to confirm.
From Mon Apr 20, 2026 to Fri May 15, 2026 - In-person Absentee Voting
In-Person Absentee Voting varies by county. Contact your local election office to confirm
From Mon May 4, 2026 to Fri May 15, 2026
Idaho Local Elections
Idaho Federal and State Elections
Tue May 19, 2026 - Idaho Congressional Primary Election
Voter Registration Deadline
Postmarked byFri Apr 24, 2026
Absentee Ballot Request Deadline
Received byFri May 8, 2026 5:00PM
Absentee Ballot Return Deadline
Received byTue May 19, 2026 8:00PM
Idaho Local Elections
Go to the Sample Ballot Lookup for candidate names and to learn of any ballot measures and proposed state constitutional amendments on your ballot.
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