LeBlanc is believed to be suffering from dementia or some other cognitive impairment.
She is described as white with short, gray hair, and hazel eyes. She stands 5 feet 1 inch tall, weighs 132 pounds and was last seen wearing a green jacket with fur on the hood and black pajamas.
LeBlanc was last seen at 136 Jennel Way in Durham and may be headed for Nags Head in a burgundy 2002 Honda Accord with North Carolina license plate OBX-27363.
Anyone with information is asked to call the Durham Police Department at 919-560-4600.