Miss. Code § 37-7-203
Except as otherwise provided herein, the trustees of such a municipal separate school district shall be elected by a majority of the governing authorities of the municipality at the first meeting of the governing authorities held in the month of February of each year, and the term of office of the member so elected shall commence on the first Saturday of March following. In the case of a member of the board of trustees who is required to come from the added territory outside the corporate limits as is above provided, such member of the board of trustees shall be elected by the qualified electors of the school district residing in such added territory outside the corporate limits at the same time and in the same manner as is otherwise provided in this article for the election of trustees of school districts other than municipal separate school districts.
In the event that a portion of a county school district is reconstituted, in the manner provided by law, into a municipal separate school district with added territory and in the event that the trustees to be elected from the added territory are requested to be elected from separate election districts within the added territory, instead of elected at large, by the Attorney General of the United States as a result of and pursuant to preclearance under Section 5 of the Voting Rights Act of 1965, as amended and extended, and in the event the added territory of a municipal separate school district of a municipality furnishes thirty percent (30%) or more of the pupils enrolled in the schools of such district, then two (2) members of the board of trustees shall be residents of the added territory outside the corporate limits of such municipality and shall be elected from special trustee election districts by the qualified electors thereof as herein provided. The board of trustees of the school district shall apportion the added territory into two (2) special trustee election districts as nearly as possible according to population and other factors heretofore pronounced by the courts. The board of trustees of the school district shall thereafter publish the same in a newspaper of general circulation within that school district for at least two (2) consecutive weeks; and after having given notice of publication and recording the same upon the minutes of the board of trustees of the school district, the new district lines shall thereafter be effective. Any person elected from the new trustee election districts constituted herein shall be elected in the manner provided for in Section 37-7-215 for a term of five (5) years. Any vacancy in the office of a trustee elected from such trustee election district, whether occasioned by redistricting or by other cause, shall be filled by appointment of the governing authorities of the municipality, provided that the person so appointed shall serve only until the next general election following his appointment, at which time a person shall be elected for the remainder of the unexpired term in the manner provided in Section 37-7-215.
In any county organizing a countywide municipal separate school district after January 1, 1965, the trustees thereof to be elected from outside the municipality, such trustees shall be elected by the board of supervisors of such county, and the superintendent of such school district shall have authority to pay out and distribute the funds of the district. In the event a municipal separate school district should occupy territory in a county other than that in which the municipality is located and fifteen percent (15%) or more of the pupils enrolled in the schools of such district shall come from the territory of the district in the county other than that in which the municipality is located, the territory of such county in which the municipality is not located shall be entitled to one (1) member on the board of trustees of such school district. The trustee shall be a resident of the territory of that part of the district lying in the county in which the municipality is not located and shall be elected by the qualified electors of the territory of such county at the same time and in the same manner as is provided for the election of trustees of school districts other than municipal separate school districts having territory in two (2) or more counties.
All vacancies shall be filled for the unexpired terms by appointment of the governing authorities of the municipality; except that in the case of the trustees coming from the added territory outside the corporate limits, the person so appointed shall serve only until the next general election following his appointment, at which time a person shall be elected for the remainder of the unexpired term in the manner otherwise provided herein.
No person who is a member of such governing body, or who is an employee of the municipality, or who is a member of the county board of education, or who is a trustee of any public, private or sectarian school or college located in the county, inclusive of the municipal separate school district, or who is a teacher in or a trustee of the school district, shall be eligible for appointment to the board of trustees.
From and after January 1, 2018, any vacancy on the board of trustees shall be filled by appointment by the remaining members of the board of trustees within sixty (60) days after the vacancy occurs. The appointee must be selected from the qualified electors of the trustee election district in which the vacancy occurs. The appointee shall serve until the first Monday of January succeeding the next general municipal election, at which election a member from that trustee election district shall be elected for a full term.
From and after July 1, 2020, any vacancy on the board of trustees shall be filled by appointment by the remaining members of the board of trustees within sixty (60) days after the vacancy occurs. The appointee must be selected from the qualified electors of the trustee election district in which the vacancy occurs. The appointee shall serve until the first Monday of July succeeding the next general municipal election, at which election a member from that trustee election district shall be elected for a full term.
From and after January 1, 2028, any vacancy on the board of trustees shall be filled by appointment by the remaining members of the board of trustees within sixty (60) days after the vacancy occurs. The appointee must be selected from the qualified electors of the trustee election district in which the vacancy occurs. The appointee shall serve until the first Monday of January succeeding the next general election, at which election a member from that trustee election district shall be elected for the remainder of the unexpired term.
Miss. Code § 37-7-203