With a population of 5,795,147 people, Wisconsin is the 20th most populous U.S. state. Milwaukee is the most populated state with a population of over 600,000. The state capital of Madison comes in second in terms of population but falls significantly behind, with 2017 estimates putting the population at just 248,951 inhabitants. Green Bay is the only other city in the state to have a population that exceeds 100,000. There are a total of 83 cities that have populations of at least 10,000 but not more than 100,000.
In all, there are 190 cities in Wisconsin. There are also municipalities in the state that are designated as towns or villages, however villages are not incorporated. There are seven incorporated cities that have populations of less than 1,000 people. The smallest of these is Bayfield, a city located in Bayfield County, which has a population of 487 people per the 2010 U.S. Census. Cities in this state are divided into classes: first class, second class, third class and fourth class.