AreaVibes reveals the best places to live in Utah for 2016 using our Livability Score. The Livability Score for each city in Utah is calculated out of 100 from a unique algorithm based on various metrics, including: amenities, cost of living, crime, education, employment, housing and weather. Utah has a population of 2,858,111 and a population density of 33.6 people per square mile. The capital city is Salt Lake City and the largest city in Utah is Salt Lake City. To filter the results, use the dropdown options to sort by population or category.