Allocation of party list seats
Party list seats in Parliament and county assemblies are filled by proportional representation, shared among parties in proportion to seats won. Lists alternate male and female candidates (with an exception for some seats), and parliamentary lists must reflect regional and ethnic diversity.
The official text
(1) Elections for the seats in Parliament provided for under Articles 97(1)(c) and 98(1)(b), (c) and (d), and for the members of county assemblies under 177(1)(b) and (c), shall be on the basis of proportional representation by use of party lists.
(2) The Independent Electoral and Boundaries Commission shall be responsible for the conduct and supervision of elections for seats provided for under clause (1) and shall ensure that—
(a) each political party participating in a general election nominates and submits a list of all the persons who would stand elected if the party were to be entitled to all the seats provided for under clause (1), within the time prescribed by national legislation;
(b) except in the case of the seats provided for under Article 98(1)(b), each party list comprises the appropriate number of qualified candidates and alternates between male and female candidates in the priority in which they are listed; and
(c) except in the case of county assembly seats, each party list reflects the regional and ethnic diversity of the people of Kenya.
(3) The seats referred to in clause (1) shall be allocated to political parties in proportion to the total number of seats won by candidates of the political party at the general election.
Summaries and answers are a plain-English guide written by Iam254, not legal advice. The official text is what counts. Official text: Constitution of Kenya, 2010, Kenya Law (National Council for Law Reporting), legislation as at 3 September 2010. It has not been amended since.