In any city of the second class, whenever the number of registered voters in any ward exceeds one thousand (1,000) the governing body of such city may divide said ward into precincts, and whenever the number of registered voters in any precinct exceeds five hundred (500) said governing body may rearrange the boundary of the precincts in said ward or create an additional precinct therein so that, so far as practicable, the number of registered voters in each precinct shall be approximately equal.
Precincts may be created and rearranged by ordinance only. No change may be made within thirty (30) days prior to the date fixed for the holding of an election of any kind in such ward.