The woman was knocked to the ground and set upon by two javelinas that "tore at her neck and upper body with their teeth", the department said in a statement.
Game and Fish spokeswoman Amy Burnett said a neighbour and the woman's husband tried to free her from the animals' jaws while four other javelinas continued to chase her dogs.
The woman underwent surgery and remains in hospital in a serious condition. One of her dogs also required surgery for its wounds.
"We are fortunate that the attack was not worse," Ms Burnett said. "Attacks by javelina on humans are rare, but when they happen, public safety is our main concern."
The woman underwent surgery and remains in hospital in a serious condition. One of her dogs also required surgery for its wounds.
"We are fortunate that the attack was not worse," Ms Burnett said. "Attacks by javelina on humans are rare, but when they happen, public safety is our main concern."
The woman is being treated for rabies as a precaution, Ms Burnett said.
All six were "lethally removed" and their remains will be tested for rabies and other potentially transmittable diseases, she said.
Since the attack, wildlife officials have determined that people living in two nearby homes had been intentionally feeding javelinas and coyotes in recent months, which Ms Burnett said could account for their aggressive behaviours.