Important Dates

June 30, 2026 Primary Election

May 16, 2026
- Ballots sent to all eligible UOCAVA (military/overseas) voters
June 5, 2026 (tentative)
- 9 a.m. Public Logic and Accuracy Test of voting equipment
June 8, 2026
- Ballots mailed to all eligible voters
- If you haven’t received your ballot by Friday, June 12, please contact our office.
- 24-hour drop boxes open
June 22, 2026
- Phase 1 Voter Service & Polling Center opens
June 22, 2026
- Last day to request a replacement ballot by mail
  - After this date, it is recommended to return your mail ballot in a 24-hour drop box or Voter Service & Polling Center
June 29, 2026
- Phase 2 Voter Service & Polling Centers open
June 30, 2026
- ELECTION DAY
- Voter Service and Polling Centers Open 7 a.m. – 7 p.m.
- All ballots must be received by 7 p.m. at the Elections office, a ballot drop box, or voter service & polling center
- 24-hour drop boxes close at 7 p.m.
July 14, 2026 (tentative)
- 9 a.m. Risk-Limiting Audit
July 21, 2026 (tentative)
- 9 a.m. Canvass Board’s Certification of Election (tentative based on when RLA is completed)

September 19, 2026
- Ballots sent to all eligible UOCAVA (military/overseas) voters
October 9, 2026
- Ballots mailed to all eligible voters
- If you haven’t received your ballot by Friday, October 16, please contact our office.
- 24-hour drop boxes open
October 12, 2025 (tentative)
- 9 a.m. Public Logic and Accuracy Test of voting equipment
October 19, 2026
- Phase 1 Voter Service & Polling Center opens
October 26, 2026
- Last day to request a replacement ballot by mail
  - After this date, it is recommended to return your mail ballot in a 24-hour drop box or Voter Service & Polling Center
November 2, 2026
- Phase 2 Voter Service & Polling Centers open
November 3, 2026
- ELECTION DAY
- Voter Service and Polling Centers Open 7 a.m. – 7 p.m.
- All ballots must be received by 7 p.m. at the Elections office, a ballot drop box, or voter service & polling center
- 24-hour drop boxes close at 7 p.m.
November 17, 2025 (tentative)
- 9 a.m. Risk-Limiting Audit
November 24, 2025 (tentative)
- 9 a.m. Canvass Board’s Certification of Election (tentative based on when RLA is completed)

Adams County Elections Department
4430 S. Adams County Pkwy.
1st Floor, Suite E3102
Brighton, CO 80601-8207

Ph: 720.523.6500
Fx: 720.523.6266
Email: adams.elections@adamscountyco.gov
FB: www.facebook.com/adcoclerk
X: www.x.com/adamsclerk