Boundaries of counties
County boundaries may be altered only by a resolution recommended by an independent commission and passed by at least two-thirds of the National Assembly and of the Senate's county delegations. Factors include population, history and culture, and communities' views.
The official text
(1) The boundaries of a county may be altered only by a resolution—
(a) recommended by an independent commission set up for that purpose by Parliament; and
(b) passed by—
(i) the National Assembly, with the support of at least two-thirds of all of the members of the Assembly; and
(ii) the Senate, with the support of at least two-thirds of all of the county delegations.
(2) The boundaries of a county may be altered to take into account—
(a) population density and demographic trends;
(b) physical and human infrastructure;
(c) historical and cultural ties;
(d) the cost of administration;
(e) the views of the communities affected;
(f) the objects of devolution of government; and
(g) geographical features.
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.