The stench was so bad that the police had to call in firefighters with breathing gear and eventually cadaver dogs to help find the body of Carina E. Decampo.
Officers were checking on her late Tuesday after worried family members called to say they hadn't heard from her in weeks.
They were met with what police called "unbelievable squalor" and a stench that made some officers ill.
After being unable to locate the woman Tuesday night, police re-entered Wednesday morning and searched for about 20 minutes before calling for help.
Cadaver dogs finally found Decampo's body near the front door. An autopsy is being performed to determine how she died.
Information from: The Florida Times-Union, http://www.jacksonville.com