The 2000 Census showed that Black Hawk County had a population of 128,012 people. This represented 4.37% of the total population of Iowa, making it the state's 4th most populous county (out of 99 counties).
From the Census Estimates for 2009<1>, Black Hawk had a population of 129,276 people. This is an increase of 0.99% since the 2000 Census.
The following table shows the recent changes in population. Other than 2000, the population counts have been estimated by the Census Bureau.
Year | Population | Change Since 2000 | Year-to-Year Change |
2010 | 131,090 | +2.4% | +1.4% since 2009 |
2009 | 129,276 | +0.99% | +0.97% since 2008 |
2008 | 128,040 | | |
2007 | 126,737 | -1% | +0.14% since 2006 |
2006 | 126,556 | -1.14% | +0.25% since 2005 |
2005 | 126,235 | -1.39% | +0.13% since 2004 |
2004 | 126,077 | -1.51% | |
2003 | 126,026 | -1.55% | -0.48% since 2002 |
2002 | 126,628 | -1.08% | -0.81% since 2001 |
2001 | 127,656 | -0.28% | -0.28% since 2000 |
--- | | | 2000 | 128,012 | The Last Census |
Black Hawk County had 51,759 Housing Units<2> at the time of the 2000 Census.
The 2000 Census shows that Black Hawk County has a total area<3> of 571 square miles [1,481 km²]. Of this total, only a minor amount of that area is covered by water (4.8 square miles [12.42 km²]).
Using the above population and land area values, Black Hawk County had a population density of 225.7 people per square mile [87.2 people/km²], making it the state's 4th most densely populated county (out of 99 counties).
US Census QuickFacts
The Census Bureau has created documents containing demographic information that are called QuickFacts. A QuickFact that is specific to Black Hawk County is available. The QuickFact also contains a comparison between Black Hawk and the state of Iowa. Click here for the Black Hawk County QuickFact (QF-19013).
Below are some of the communities that are located in Black Hawk County:
Below are the counties that adjoin and form the boundaries of Black Hawk County. A link to their specific Census QuickFact has been provided.
County | Census QuickFact | Direction | Population (2009 Est.) | Population (2000 Census) | Change in Population |
Benton | QF-19011 | SE | 26,734 | 25,308 | 5.63% |
Bremer | QF-19017 | N | 23,460 | 23,325 | 0.58% |
Buchanan | QF-19019 | E | 20,910 | 21,093 | -0.87% |
Butler | QF-19023 | NW | 14,341 | 15,305 | -6.3% |
Fayette | QF-19065 | NE | 20,164 | 22,008 | -8.38% |
Grundy | QF-19075 | W | 12,177 | 12,369 | -1.55% |
Tama | QF-19171 | S | 17,377 | 18,103 | -4.01% |
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