Serenity Robertson, 17, was last seen in Florissant, Missouri on January 15, 2026. She is described as female, red hair, brown eyes, 5 feet 10 inches tall and about 180 pounds. What she was wearing that day has not been widely publicized.

The St. Louis County Police Department is leading the investigation, assisted by the Missouri State Highway Patrol Missing Persons Clearinghouse. Her case has been entered into national missing persons databases and remains an active investigation with public appeals for information.

Anyone who may have seen Serenity or has information is asked to contact the St. Louis County Police Department at 636-529-8210 or the Missouri State Highway Patrol Missing Persons Clearinghouse. If you knew Serenity or saw her around January 15, what do you remember?