My state is located in the Midwest. My state is bordered by: Michigan, I llinois, Iowa, and Minnesota. Wisconsin’s population The United States Census Bureau estimates that the population of Wisconsin in 2013 was 5,726,398, which is ranked the 20th largest population in the United States. This estimate shows a 0.7% increase since the last census in 2010, also conducted by t he United States Census Bureau. The population density of the state is 105 people per square mile, ranked the 23rd largest density in the United States.