According to local news and the AJC she was shot in the head but it didn't enter the skull:
The second deputy, Salomone said, “appeared to have a single gunshot wound to the head.”
Salomone said the bullet did not enter the deputy’s skull.
“She has a small bruise on her brain and some fractures around her face,” the doctor said. “It appears that after being shot, the deputy perhaps fell to the ground, receiving some of those fractures to her head.”
He said that while that deputy is in critical condition, “she is expected to survive the injuries.”