The scene is in the 100 block of Cobblestone Court in Alburtis.
The coroner said the victims are a mother and her daughter - Althea Walbert, 82, and Janette Walbert, 59.
State Police are investigating with the Alburtis Police Department and the Lehigh County Homicide Task Force.
The Lehigh County District Attorney's Office also has investigators on the scene.
