Wayne County is the most populated county.
Maricopa County home of the Phoenix area is the most populated county in Arizona.
The 2012 census ranks Shelby as Tennessee's most populated county. There were 939,877 reported ;living in Shelby county. Davidson county comes second with only 648,801 residents.
Oahu is the most populated island in Hawaii; Maui County is the most populated county.
Cambria county
Los Angles is the most populated area of California. It is a mega metropolitan area.
Nashville is the most populated city in Tennessee. Memphis is the second most populated city. The U.S. Census Bureau reports that as of July 1, 2015 Nashville has a population of 654,610 and Memphis has a population of 653,450.
The most populated county in the US is Los Angeles County in California with a total population of 9,878,554.
Stoughton is the fifth most populated city in Dane county with a population of 12,692.
Los Angeles County
Cuyahoga County (Cleveland)
Salt Lake County