Cecilia Mack was 15 when she disappeared from Milwaukee in the early spring of 2025. At the time she was described as 5 feet, 6 inches tall, about 285 pounds, with brown eyes and black hair. Specific circumstances of her disappearance have not been released publicly.

Law enforcement and family searched locally, and it is believed Cecilia may have remained in the Milwaukee area after she was last seen. The National Center for Missing & Exploited Children added her case to its listings. As of the one-year mark in March 2026, the Milwaukee Police Department had not announced any significant developments and the investigation remained open.

If anyone in Milwaukee or nearby communities saw Cecilia after the early spring of 2025 or has information that could help, please contact the Milwaukee Police Department or the National Center for Missing & Exploited Children.