She has been missing since Wednesday 16 November and officers are concerned for her welfare.
Sophia is 15-year-old and was last seen in Dunstable.
She is described as white, short, with long bleached ginger hair. She was last seen wearing a black Hoodrich tracksuit.
She has links to Hitchin, Bedford and Greenwich in London.
Anyone with information is asked to call Bedfordshire Police on 101 quoting reference MPC/2569/22
You can also provide information online via https:///orlo.uk/o1XLQ
