The woman's body was found on Automobile Road, south of Riley-Thompson in Dalton Township around 6 p.m.
Investigators say the driver who hit the jogger fled the scene.
The victim was in her late 30s. Police are notifying family members, and won't identify the woman until Monday.
Police have not yet found anyone who saw what happened.
Investigators are asking if anyone in the area saw a vehicle leaving at a high rate of speed. Police are also asking the driver to come forward.
A husband and wife discovered the jogger Sunday evening. The wife is a nurse, who told police the jogger still had vital signs. Despite the nurse's efforts, the jogger died before paramedics arrived.