Va. Code § 22.1-29
Each person appointed or elected to a school board shall, at the time of his appointment or election, be a qualified voter and a bona fide resident of the district from which he is selected if appointment or election is by district or of the school division if appointment or election is at large; and if he shall cease to be a resident of such district or school division, his position on the school board shall be deemed vacant. Notwithstanding any other provision of law, general or special, in a locality that imposes district-based or ward-based residency requirements for members of the school board, the member elected from each district or ward shall be elected by the qualified voters of that district or ward and not by the locality at large.
Va. Code § 22.1-29