Article XI, Section 4 | Requirements for drawing Senate districts
(A) Senate districts shall be composed of three contiguous house of representatives districts.
(B)(1) A county having at least one whole senate ratio of representation shall have as many senate districts wholly within the boundaries of the county as it has whole senate ratios of representation. Any fraction of the population in excess of a whole ratio shall be a part of only one adjoining senate district.
(2) Counties having less than one senate ratio of representation, but at least one house of representatives ratio of representation, shall be part of only one senate district.
(3) If it is not possible for the commission to draw representative districts that comply with all of the requirements of this article and that make it possible for the commission to comply with all of the requirements of divisions (B)(1) and (2) of this section, the commission shall draw senate districts so as to commit the fewest possible violations of those divisions. If the commission complies with this division in drawing senate districts, the commission shall not be considered to have violated division (B)(1) or (2) of this section, as applicable, in drawing those districts, for the purpose of an analysis under division (D) of Section 9 of this article.
(C) The number of whole ratios of representation for a county shall be determined by dividing the population of the county by the ratio of representation in the senate determined under division (A) of Section 3 of this article.
(D) Senate districts shall be numbered from one through thirty-three and as provided in Section 5 of this article.