"Precinct" means a geographical area within a county that is made up of voters and is formed pursuant to Chapter 3 (commencing with Section 12200) of Division 12. All voters from the same precinct are assigned to a specific polling place for an election. In an election conducted using vote centers, eligible voters from any precinct within the county can use any vote center located within the county.
Ca. Elec. Code § 338.6