Government Code § 23352
ARTICLE 4. Election on Creation of the Proposed County
If the election for the purpose of determining whether the proposed county shall be created results in the county being created, an election for purposes of determining the location of the county seat and the selection of county officers shall be held in the approved county at the next statewide primary or general election date, as provided in Article 4.5 (commencing with Section 23374. 1).