*Includes portions of Butte, Colusa, Glenn, Lassen, Modoc, Shasta, Siskiyou, Sutter, Tehama, and Yuba counties.
Special Primary Election, June 2, 2026
- Governor's Proclamation for Congressional District 1 Special Election (PDF)
- Congressional District 1, Special Primary Election Calendar (PDF)
- Congressional District 1 Registration Information (as of October 20, 2025, Report of Registration) (PDF)