The term of office of all officers elected at such election for any district office, in a district composed of more than one county, or any county office, or any office of a subdivision of a county shall commence on the first Monday of January next succeeding the election.
Date terms begin for district, county, and beat officers
Miss. Code Ann. § 25-1-5, under Public Officers; General Provisions.
Miss. Code Ann. § 25-1-5