Contra Costa
- March 7 - Special Election
Humboldt
- March 7 – Consolidated Districts Election 2023
Los Angeles
- January 31 – City of Downey Special Municipal
- March 7 – Renondo Beach City and Redondo Beach Unified School District
- March 7 – City of Inglewood Runoff
- April 4 – Los Angeles City Council District 6 Special Primary
- April 4 – City of Sierra Madre Special Municipal
- May 2 – South Pasadena Unified School District Parcel Tax
- May 9 – City of Sierra Madre Special Municipal
- May 23 – City of Beverly Hills Special Election
Marin
- March 7 – Municipal Special Vacancy (City of Mill Valley)
- March 7 – Municipal Special Vacancy (Novato Unified School District)
- April 18 – Paso Robles Joint Unified School District, Special Vacancy Election
Monterey
- January 3 - School District Special Election
- April 18 – Paso Robles Joint Unified School District, Special Vacancy Election
- May 2 - San Lucas Union Elementary School District (General Obligation Bonds)
Orange
January 31, 2023 – City of Seal Beach Districts 3 and 5 Municipal Run-Off Election
Napa
March 7 – City of Calistoga
Plumas
May 2 – West Almanor CSD Special Tax
San Joaquin
March 7 – Oakdale Joint Unified School District Special Election
San Luis Obispo
April 18 – Paso Robles Joint Unified School District
San Mateo
May 2 – Millbrae School District Special Mail Ballot Election
Shasta
March 7 – Special Vacancy Election, City of Shasta Lake
Solano
April 11 – Benicia Unified School District, Trustee Area 5
Sonoma
March 7 – Special Election
Stanislaus
March 7 – Oakdale Joint Unified School District Special Election
Ventura
March 7 – City of Oxnard District 6 (Short Term) Special Municipal Vacancy Election
Yolo
May 2 – City of Davis All-Mail Ballot Special Municipal Election
