It happened before 1:30 p.m. Thursday on Spring White Drive.
Police say the woman, believed to be in her 30's, was attacked by her dog on the rear deck of her home.
She was taken to Lehigh Valley Medical Center where she was pronounced dead.
The dog, a three and a half year old boxer/pit bull, was taken to the Lehigh County Humane Society where it will be euthanized.
The victim's name is being withheld until family members are notified.