Police say the man went into the Bank of Utah at 711 S. State St. and demanded money.
He was last seen headed southbound on State Street on foot.
The suspect is described as a white male between 20-30 years hold, about 5 feet 8 inches tall, medium build. The suspect had facial hair and at the time of the robbery was wearing a black jacket, grey beanie, orange shirt black pants and a black backpack.
The police department asks anyone who may know the identity or location of the suspect to call (801) 799-3000.