Alameda
Alpine
Amador
Butte
Calaveras
Colusa
Contra Costa
- May 5, 2020 - VBM Election - CSA P-2 Blackhawk
Del Norte
El Dorado
Fresno
Glenn
Humboldt
Imperial
Inyo
Kern
Kings
Lake
Lassen
Los Angeles
- March 3, 2020 - Congressional District 25 Special Primary Election
- April 14, 2020 - General Law and Charter City Elections
- May 12, 2020 - Congressional District 25 Special General Election
- June 2, 2020 - Special Elections
- July 21, 2020 - City of Industry Special Municipal Election
Madera
Marin
Mariposa
Mendocino
Merced
Modoc
Mono
Monterey
Napa
Nevada
Orange
April 7, 2020 - City of Westminster Special Recall Election
Placer
Plumas
- May 5, 2020 - Hamilton Fire Branch Special Tax
Riverside
- March 3, 2020 - Senate District 28 Special Primary Election
- April 14, 2020 - City of Rancho Mirage
- May 12, 2020 - Senate District 28 Special General Election
Sacramento
San Benito
San Bernardino
San Diego
San Francisco
San Joaquin
- August 25, 2020 - Tracy Village Special Election
San Luis Obispo
San Mateo
- June 23, 2020 - County Service Area No. 1 Special Mail Ballot Election
Santa Barbara
Santa Clara
Santa Cruz
Shasta
Sierra
Siskiyou
Solano
Sonoma
- May 5, 2020 - Special Mailed Ballot Election
Stanislaus
- August 25, 2020 - City of Newman Special Election
Sutter
Tehama
Trinity
Tulare
- July 21, 2020 - Employees Retirement Association Special Election
Tuolumne
Ventura
- March 3, 2020 - Congressional District 25 Special Primary Election
- May 12, 2020 - Congressional District 25 Special General Election
