Utah constitution
Article VIII: judicial department
Section 7

Supreme court justices shall be at least 30 years old, United States citizens, Utah residents for five years preceding selection, and admitted to practice law in Utah. Judges of other courts of record shall be at least 25 years old, United States citizens, Utah residents for three years preceding selection, and admitted to practice law in Utah. If geographic divisions are provided for any court, judges of that court shall reside in the geographic division for which they are selected.