English: Counties in the United States by population per square mile of land area according to the U.S. Census Bureau American Community Survey 2013–2017 5-Year Estimates (DP05 - ACS DEMOGRAPHIC AND HOUSING ESTIMATES) and the 2010 U.S. Census Summary File 1 (GCT-PH1 - Population, Housing Units, Area, and Density: 2010 - United States -- States; and Puerto Rico). Counties more densely populated than the United States as a whole are in full blue.
Counties in the United States by population per square mile of land area according to the U.S. Census Bureau American Community Survey 2013–2017 5-Year Estimates and 2010 U.S. Census.