The car crash happened early Saturday when the driver of the vehicle was speeding, then lost control of the vehicle and crashed it into a concrete wall and a tree, The Wichita (Kan.) Eagle reported.
Alcohol was found in the car, police Sgt. Scott Brunow said.
The woman, whose name was not reported, was thrown from the car and suffered a broken neck, as well as "numerous broken bones," Brunow said. She was transported to a local hospital where she was conscious but in serious condition.
Police said they have interviewed the woman and believe that at least two other people were in the car at the time of the crash and fled the scene before police arrived.
Brunow said police have a tentative identification of the driver, who is another woman in her 20s.