Primaries:
- Congressional and state primaries: Nonpartisan, Top Two
- Presidential primaries: Closed*
*The Democratic party has amended its primary rules to allow Independent voters to participate.

*The Democratic party has amended its primary rules to allow Independent voters to participate.
More Choice San Diego is pursuing a ballot initiative to bring Final Five Voting (nonpartisan primaries + ranked choice voting in the general election) to San Diego in 2022.