Number and election of councillors
6(1)The number of councillors of a borough which has been included in a rural district shall be such number, not being less than five nor more than twenty-one, as may be fixed from time to time by the Minister.
(2)The term of office of councillor shall be three years and shall begin and end on the twentieth day of May, except that a person elected to fill a casual vacancy, among councillors shall hold office from the date of his election until the date on which the person in whose place he .was elected would have been due to retire.
(3)The councillors shall be elected by the local government electors for the borough except that a casual vacancy among councillors shall be filled by the council, which shall be convened forthwith for that purpose.
(4)An order for the inclusion of a borough in a rural district may divide it into wards for the purpose of the election of councillors ; and (without prejudice to the generality of paragraph 1 of this Schedule) sections fifty-two and fifty-five of the Act of 1933 shall apply in relation to boroughs included in rural districts, and the wards and councillors of such boroughs, as they apply in relation to parishes, parish wards and parish councillors.