Water Code § 20702
ARTICLE 1. Petitioners and Land
“Land susceptible of irrigation” as used in section 20700 of this code includes land used for residential or business purposes susceptible of receiving water for domestic or agriculture purposes and if land of that character constitutes a majority in area of the land in the proposed district the holders of title thereto or electors residing thereon shall be counted as qualified petitioners for the formation of the district.