The incident happened Tuesday around midnight at the Riverbend Apartments, according to Milledgeville Police Major John Davis.
Davis says the unidentified woman was shot in her upper thigh.
She told police she was watching an altercation at another building inside the complex when she was shot.
Police found a small caliber rifle and other evidence.
Anyone with information about the shooting is asked to call Milledgeville Police at 478-414-4415.