The Pinellas County Sheriff's Office said deputies responded to 24th Street North in St. Petersburg in reference to the attempted murder at around 10:36 a.m. on Tuesday.
Deputies found the 56-year-old woman with a hatchet protruding from her head. According to detectives, she was taken to a local hospital with life-threatening injuries.
The suspect, later identified as 40-year-old Michael Dougherty, fled from the scene before deputies arrived, PCSO said. Detectives said they were able to find Dougherty's vehicle near Gainesville on Tuesday.
On Thursday, a deputy with the Alachua County Sheriff's Office pulled Dougherty over. He was taken to the Alachua County Jail on an attempted second-degree murder, Pinellas County deputies said.
The suspect will be taken to the Pinellas County Jail at a later date, PCSO said. Deputies did say the investigation remains active.