The woman, a mother of two young children, was identified by the medical examiner as Susann Smith, 37, of Bothell.
Smith failed to show up for work on Monday. Police conducted a welfare check the next day and found her remains inside her home, in the 200 block of 240th Street SW.
Her children - both under 10 years of age - were not hurt. Police did not elaborate on their whereabouts.
Neighbors say Smith was one of the kindest people on the block. Police and neighbors said the victim and her two children have lived in the home for about three years. The woman has been separated from her husband for some time, they said.
Investigators are now trying to determine who would want to hurt the woman, and why.
Police have made no announcements about a suspect of person of interest in the case. Anyone with information is urged to call police immediately.