The most populated county in the US is Los Angeles County in California with a total population of 9,878,554.
Wayne County is the most populated county.
Maricopa County home of the Phoenix area is the most populated county in Arizona.
Oahu is the most populated island in Hawaii; Maui County is the most populated county.
The most populated county in California is Los Angeles County. With over 10 million residents, it is the most populous county in the United States.
Cambria county
Stoughton is the fifth most populated city in Dane county with a population of 12,692.
Los Angeles County
Salt Lake County
Cuyahoga County (Cleveland)
The most populated suburb in the US is Hempstead, located in Long Island, New York. It has a population of over 760,000 residents.
Kentuckys most densely populated county is Jefferson.It has more than twice the populous as the second largest county Fayette.
Marion County has the most population In Indiana.