Kan. Stat. § 14-103
The city council shall divide the city into wards, which shall be as equal in population as practicable, establish the boundaries thereof, and number the same, and when the population of any city exceeds 4,000 the number of wards shall not be less than four, and the number of wards in any city not exceeding eight thousand (8,000) in population shall not be more than four, except that any city now legally organized with more than four wards duly represented in the council shall not be affected by the provisions of this act. The territory of each ward shall be contiguous and compact.
The city council of any city of the second class having a population of less than 3,000 and having three or more wards may, by ordinance, change and redefine the boundaries of the wards of such city in order to reduce the number of its wards to not less than two, but no such ordinance shall become effective less than 90 days prior to the next regular city election.
Two council members shall be elected from each ward at the city election in odd-numbered years. Council members shall have terms of two years and until successors are elected and qualified.
K.S.A. 14-103