Authorities say Betty Iannarelli disappeared in Irvington Friday morning.
Investigators say she is 84-years old. She has dementia, may appear disoriented and could be confused.
She was last seen wearing a blue dress and sandals at her apartment on South Broadway.
Iannarelli's daughter says she's offering 5-thousand-dollars to whomever can find her mother.
Anyone with information about Iannarelli should contact the Irvington police department at 914-591-8080.