AreaVibes reveals the best places to live in California for 2016 using our Livability Score. The Livability Score for each city in California is calculated out of 100 from a unique algorithm based on various metrics, including: amenities, cost of living, crime, education, employment, housing and weather. California has a population of 38,066,920 and a population density of 232.4 people per square mile. The capital city is Sacramento and the largest city in California is Los Angeles. To filter the results, use the dropdown options to sort by population or category.