The Florida Times-Union reports that officers were checking on Carina E. Decampo 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 officers ill.
After trying to search for about 20 minutes, they had to call in help.
The fire department arrived, using breathing gear and search dogs to find Decampo.
No cause of death was immediately released.
Information from: The Florida Times-Union, http://www.jacksonville.com