Cal. Educ. Code § 5426

The cost of any election held under the provisions of Article 8 (commencing with Section 4400) of Chapter 2 of Part 3 of this division, or Article 7 (commencing with Section 35690) of Chapter 3 of Part 21 of Division 3 of Title 2, or Article 3 (commencing with Section 74630) of Chapter 5 of Part 46 of Division 7 of Title 3, where the election is being held for the assumption of bonded indebtedness of the district to which the territory is being transferred or where the county board of supervisors requires an election to be held in the whole district from which the territory would be transferred, shall be paid from the county general fund.