Prescott, Arizona is a town.
Prescott ( [ ˈprɛskət ] ; ʼWi : kwatha Ksikʼita ) is a city in Yavapai County , Arizona , United States . According to the 2010 Census , the population of the city is 39,843 . The city is the county seat of Yavapai County . Prescott Valley is a town with a current population ( October 2016 ) of about 45,500 residents located in Yavapai County , Arizona , United States , and a suburb of Prescott ( although Prescott Valley is larger ) . Prescott Valley was the seventh fastest-growing place among all cities and towns in Arizona between 1990 and 2000 .