The 17-year-old became one of the youngest winners in the competition's history when she scooped the crown during Saturday's live ceremony in Las Vegas.
She will serve as Miss America - taking over from last year's winner Caressa Cameron - for the next 12 months. She will travel the country to discuss her platform, 'Eating Disorders: A Generation At Risk', and also act as a National Goodwill Ambassador for the Children's Miracle Network Hospitals.
Scanlan, a pianist, also won a $50,000 scholarship which she will put towards attending law school and pursuing a legal and political career. Additionally, she will serve as the official spokesperson for Joseph Ribkoff International Clothing Company.
Miss Arkansas Alyse Eady was named first runner-up, while Miss Hawaii Jalee Fuselier secured second-runner-up.
The 2011 ceremony marked the competition's 90th anniversary. It was hosted by Bachelor's Chris Harrison and Dancing With The Stars co-host Brooke Burke and aired live on ABC.