which took effect on October 1, 1968. In this measure, the Duval County and City of Jacksonville governments were consolidated, expanding the city limits to include almost the entire county. Mayor Hans Tanzler had just taken office on June 23, 1967; however, consolidation meant that he would have to run again for the office of mayor for the newly consolidated city government. Tanzler was re-elected and took office on March 1, 1968. Since that time mayors have been elected every four years. Mayors of Jacksonville, Florida The following is a list of mayors of Jacksonville: Pre-Civil War mayors Intendant period Pre-Civil War Mayors revived There were no elections held in 1862, 1863, and 1864. Pre-consolidation mayors Consolidated city mayors See also Timeline of Jacksonville, Florida References History of Jacksonville, Florida Jacksonville, Florida Jacksonville, Florida-related lists