Missing woman last seen at San Leandro Marina
She is described as a black woman standing about 5 feet 5 inches tall and weighing around 180 pounds with slightly gray dark hair, according to police.
Carroll was last seen wearing a purple shirt and jeans, police said.
Her family members said she has the mental capacity of a younger teenager and is not familiar with public transportation, according to Brandt.
Anyone with information on her whereabouts is asked to call San Leandro police at (510) 577-2740.