The Delaware Primary Election 2026 is scheduled for Tuesday, September 15, 2026, giving voters an important opportunity to choose party nominees for the November general election. Delaware voters will decide among candidates in contested Democratic and Republican races, including the U.S. Senate, U.S. House, Attorney General, State Treasurer, and several legislative districts.
Delaware Primary Election 2026 Date and Schedule
The main Delaware Primary Election 2026 will take place on Tuesday, September 15. Polling places will be open from 7 a.m. until 8 p.m., while voters who prefer early voting can cast their ballots during several periods beginning September 2. The state has also provided absentee voting for eligible voters who meet the requirements.
Early voting is scheduled for September 2 through September 5 from 7 a.m. to 7 p.m. There will be no early voting on September 6 and 7 because of the Labor Day holiday. Voting resumes on September 8 from 7 a.m. to 7 p.m., followed by September 9 through September 13 from 11 a.m. to 7 p.m.
| Quick Election Facts | Details |
| Election | Delaware Primary Election 2026 |
| Primary Date | September 15, 2026 |
| Election Day Poll Hours | 7 a.m. – 8 p.m. |
| Early Voting Begins | September 2, 2026 |
| Voter Registration Deadline | August 22, 2026 |
| Party Change Deadline | May 29, 2026 |
| General Election | November 3, 2026 |
| Main Parties | Democratic and Republican |
Delaware Primary Election 2026 Candidates
The official candidate list shows several competitive statewide races. In the Democratic U.S. Senate primary, the qualified candidates listed by the Delaware Department of Elections are Jeff Appelhans, Chris Coons, E. No-Trump Hansen, and Mary Louve. The Republican Senate contest includes Michael “Dr. Mike” Katz and John Shulli.
The Republican primary for Delaware’s U.S. House seat also has a three-way contest involving Joseph “Dr. Joe” Arminio, Earl L. Cooper, and John J. Whalen. These candidates are among the statewide races that could attract significant attention before voters move toward the November 3 general election.
Another important contest is the Democratic primary for Attorney General. The official candidate list includes Dwayne J. Bensing, incumbent Kathy Jennings, and Patty Rickman. The Democratic State Treasurer primary is also contested, with Ted Lauzen, Mike Miller, and Michael Alexander Smith listed as qualified candidates.
Beyond statewide offices, voters will also see contested races for the Delaware General Assembly. Several State Senate and State Representative districts have multiple candidates from the same party, meaning primary results will determine who advances toward the general election. The exact contests appearing on an individual ballot depend on the voter’s district and party affiliation.
Who Can Vote in the Delaware Primary Election 2026?
Delaware operates party-based primary elections. Democratic voters may participate in the Democratic primary, while Republican voters may participate in the Republican primary. Voters who are not affiliated with either major party generally cannot simply choose a Democratic or Republican primary ballot on Election Day.
The deadline to change party affiliation for the 2026 state primary was Friday, May 29. However, Delaware has a special provision for certain voters who were automatically registered through the DMV under the Automatic Voter Registration system. Eligible AVR voters can affiliate with a major party through the primary date under the state’s current rules.
Delaware Primary Election 2026 Voter Registration Deadline
Anyone who is eligible to vote but is not yet registered should pay close attention to the August deadline. The voter registration deadline for the Delaware Primary Election 2026 is Saturday, August 22, 2026, at 11:59 p.m. Delaware election offices are also scheduled to be open from 8 a.m. to 4:30 p.m. that day for registration assistance.
Military and overseas voters have a different deadline under federal rules. Delaware lists August 31, 2026, as the registration deadline for uniformed service members and U.S. citizens living outside the country who need to register for the primary.
How to Vote in Delaware Primary Election 2026
Delaware provides three main ways to participate: absentee voting for eligible voters, early voting, and voting at an assigned polling place on Election Day. Voters should check their registration and polling information before voting so they know which ballot and location apply to them.
For Election Day voting, polling places will operate from 7 a.m. to 8 p.m. Voters may be asked to provide identification showing their name and current Delaware address. Acceptable documents can include a Delaware driver’s license or state ID, utility bill, bank statement, lease, government document, or other qualifying identification.
If a voter does not have identification, election officials can verify the person’s registration. Once registration is confirmed, the voter can complete an affirmation of voter identity and continue with the voting process. This means a missing ID does not automatically prevent a registered Delaware voter from casting a ballot.
Delaware Primary Election 2026 Absentee Voting
Eligible Delaware voters can request an absentee ballot when they meet one of the reasons allowed under state law. The absentee application must be completed and signed, and voters should submit their request early enough to allow the ballot to be delivered and returned before the deadline.
For the 2026 primary, the last day to request that an absentee ballot be mailed is Friday, September 11. Completed absentee ballots must reach the Department of Elections by 8 p.m. on September 15 to be counted, so voters should avoid waiting until Election Day to return a mailed ballot.
Important Delaware Primary Election 2026 Deadlines
Several dates are especially important for Delaware voters. The voter registration deadline is August 22, while military and overseas voters have until August 31. Early voting begins September 2, and the final day for requesting a mailed absentee ballot is September 11.
On September 14, the Department of Elections deadline for issuing primary absentee ballots is noon. On September 15, Election Day, polling places remain open until 8 p.m., and absentee ballots must also be received by the close of polls to count.
What Is at Stake in the Delaware Primary Election 2026?
The primary matters because it determines which candidates will represent the Democratic and Republican parties in November where multiple candidates from the same party are competing for an office. In Delaware, many legislative contests can effectively be decided at the primary stage when one party has a strong advantage in a particular district.
The U.S. Senate race is one of the most closely watched contests on the statewide ballot. With four qualified Democratic candidates and two qualified Republican candidates listed by the Department of Elections, the September primary could shape the choices voters will have in November.
How to Check Your Delaware Ballot and Polling Place
Before voting, Delaware residents should confirm their voter registration, party affiliation, polling location, and district information through the state’s official voter resources. Sample ballots are also provided by the Department of Elections as they become available, allowing voters to review their contests before arriving at the polls.
Because candidates and ballot information can change during an election cycle, voters should rely on the Delaware Department of Elections for the latest official information. The department maintains the candidate list, voting instructions, locations, deadlines, and other election resources for the 2026 primary.
Where can voters find official election information?
The Delaware Department of Elections provides official information about registration, candidates, polling places, early voting, absentee voting, deadlines, and election results through its election website.
The Delaware Primary Election 2026 is an important step toward the November election, with competitive races across statewide and legislative offices. Voters should verify their registration, understand their party eligibility, review their ballot, and mark the key dates before September 15. Staying informed through official Delaware election resources can help ensure that every eligible voter is prepared to participate.
Delaware Primary Election 2026 FAQs
When is the Delaware Primary Election 2026?
The Delaware Primary Election 2026 is scheduled for Tuesday, September 15, 2026. Polling places will be open from 7 a.m. until 8 p.m. on Election Day.
When does early voting begin in Delaware?
Early voting begins September 2, 2026. The early voting schedule continues through September 13, with specific hours varying by date and no early voting scheduled on September 6 and 7.
What is the voter registration deadline?
The regular voter registration deadline for the 2026 Delaware primary is August 22, 2026, at 11:59 p.m. Military and overseas voters have a separate August 31 deadline.
Can independent voters participate in the Delaware primary?
Delaware’s major-party primaries are restricted by party affiliation. Democrats vote in the Democratic primary and Republicans vote in the Republican primary.
Who is running for U.S. Senate in Delaware?
The Democratic candidates listed by the state are Jeff Appelhans, Chris Coons, E. No-Trump Hansen, and Mary Louve. The Republican candidates are Michael “Dr. Mike” Katz and John Shulli.
When is the Delaware general election?
The 2026 Delaware general election is scheduled for Tuesday, November 3, 2026. The primary on September 15 will determine party nominees for contested offices.
Also Read: New Hampshire Primary Election 2026 Date, Candidates, Voting Guide, and Key Deadlines
