Notes:
Black Hawk County does not provide mugshot images.
Some of the cities, towns, and places in Black Hawk County are Barclay, Bennington, Big Creek, Black Hawk, Blessing, Cedar, Cedar Falls, Dewar, Dunkerton, Eagle, Eagle Center, East Waterloo, Elk Run Heights, Evansdale, Finchford, Fox, Gilbertville, Glasgow, Hudson, Janesville, Jesup, La Porte City, Lester, Lincoln, Mount Vernon, Orange, Poyner, Raymond, Spring Creek, Union, Voorhies, Washburn, Washington, Waterloo

Black Hawk County is a county in the northeastern part of the U.S. state of Iowa. As of the 2020 census, the population was 131,144, making it Iowa's fifth-most populous county. The county seat is Waterloo.
Black Hawk County is part of the Waterloo – Cedar Falls metropolitan area.