Wikipedia: Black Hawk County, Iowa
- Encyclopedia article presents geography, demographics, links to cities and towns, and references. With maps.
- http://en.wikipedia.org/wiki/Black_Hawk_County,_Iowa

Hartman Reserve Nature Center
- A 300 acre wooded isle providing forest, wetland and prairie habitats. Includes history, events, programs, volunteer opportunities and information about the Friends group. Located in Cedar Falls.
- http://www.co.black-hawk.ia.us/hartman/

City-Data.com: Black Hawk County, Iowa
- Profiles population demographics, jobs, housing, agriculture and crime statistics. Contains a list of recreational areas, churches, cemeteries, post offices, charts, graphs and maps.
- http://www.city-data.com/county/Black_Hawk_County-IA.html

Black Hawk County , Iowa - US Census Bureau
- Provides population, demographic, and housing information.
- http://quickfacts.census.gov/qfd/states/19/19013.html

Metro Funders
- Voluntary alliance of public agencies and private organizations that collects information, evaluates operations, provides funding coordination, and prioritizes information for funding and develops financial resources for service providers. Includes fundin
- http://www.metrofunders.org/

BlackHawk Waste Disposal, Inc.
- Serving commercial, industrial and residential customers since 1978. Includes information about services, containers, FAQs and hours.
- http://www.blackhawkwaste.com/

Iowa State University Extension - Black Hawk County
- Offers agricultural, business, family and 4-H programs and resources. Includes staff directory, news, events, hours and directions. Located in Waterloo.
- http://www.extension.iastate.edu/blackhawk/

Black Hawk County Abstract & Title
- Serving the area since 1871. Includes list of services provided and a newsletter. Located in Waterloo.
- http://www.blackhawkabstract.com/

Black Hawk County
- Official county government site. Includes general information, a brief history, details about parks and recreation areas, links to schools, a directory of elected officials, maps and directions.
- http://www.co.black-hawk.ia.us/