Elections
Delaware 2026 Primary Election: Date, Rules & What to Know
The Delaware 2026 congressional primary is September 15, 2026. General Election Day is November 3, 2026.
Primary Election · September 15, 2026
General Election · November 3, 2026
What's on the Delaware 2026 Ballot
U.S. House of Representatives
All U.S. House seats in Delaware are on the 2026 ballot. Every House member runs for re-election every two years. View Delaware representatives →
U.S. Senate — Class II Seat
Delaware's Class II Senate seat is up for election in 2026. The current senator is Lisa Blunt Rochester (D). Class II senators were last elected in 2020 and serve six-year terms.
Delaware's Primary System: Partisan Closed Primary
Delaware holds a closed primary, meaning you must be registered with a political party to vote in that party's primary. Independent and unaffiliated voters cannot participate unless they re-register with a party before the registration deadline.
Delaware 2026 Election Key Dates
| September 15, 2026 | Primary Election |
| October 2026 | Voter registration deadlines (check your state) |
| November 3, 2026 | General Election |
| January 3, 2027 | 120th Congress convenes |
Voter Registration in Delaware
You must be registered with a political party to vote in that party's primary. Independent/unaffiliated voters cannot participate unless they re-register before the deadline. Registration deadlines vary — most states require registration 15–30 days before the primary, though some offer same-day registration.
Check your registration status and find your polling place at vote.gov.
See All State Primary Dates
Compare Delaware's primary to other states' 2026 schedules.
Sources
Frequently Asked Questions
When is the Delaware primary election in 2026?
The Delaware 2026 congressional primary is September 15, 2026. The general election is November 3, 2026.
Can I vote in the Delaware primary if I'm not registered with a party?
You must be registered with a political party to vote in that party's primary. Independent/unaffiliated voters cannot participate unless they re-register before the deadline.
What is on the Delaware 2026 primary ballot?
All U.S. House seats in Delaware are on the 2026 primary ballot. Additionally, the U.S. Senate seat (Class II) is up for election. The current senator is Lisa Blunt Rochester (D). Many states also hold primaries for governor and state legislature on the same day.
What type of primary does Delaware use?
Delaware holds a closed primary, meaning you must be registered with a political party to vote in that party's primary. Independent and unaffiliated voters cannot participate unless they re-register with a party before the registration deadline.
When is the Delaware voter registration deadline for the 2026 primary?
Voter registration deadlines vary but are typically 15–30 days before the primary. Because Delaware has a closed primary, you must also be registered with a party before the deadline to vote in a party primary. Check the Delaware Secretary of State website or vote.gov for the exact deadline.
When is the Delaware general election in 2026?
The 2026 general election is on Tuesday, November 3, 2026. This date is the same for all 50 states — it is always the first Tuesday after the first Monday in November in even-numbered years.