Iowa

Black Hawk

131,144
2020 population
1850
first census record
18
census records

About Black Hawk

Black Hawk, Iowa, first appears in the United States federal census in 1850, when it recorded a population of 135. At the most recent census, in 2020, its population stood at 131,144.

Its recorded population peaked at 137,961 in 1980, and has since declined by roughly 5 percent.

On the ground today, 50 places are listed on the National Register of Historic Places.

Population by decade

Census YearPopulationChart
2020131,144
2010131,090
2000128,012
1990123,798
1980137,961
1970132,916
1960122,482
1950100,448
194079,946
193069,146
192056,570
191044,865
190032,399
189024,219
188023,913
187021,706
18608,244
1850135
Source

Population data from the United States decennial census, U.S. Census Bureau (public domain).

Historic places in Black Hawk

National Register of Historic Places listings in Black Hawk, Iowa.

Cedar Falls Independent Order of Odd Fellows
Cedar Falls
Gingrich, Clement B., House
La Porte City
Round Barn, Washington Township
Janesville
Overland Waterloo Company Building
Waterloo
Dunkerton Bridge
Dunkerton
Waterfield, William, House
Raymond
Russell, Rensselaer, House
Waterloo
Marsh-Place Building
Waterloo
Wasson, Dr. Jesse, Building
La Porte City
Waterloo Masonic Temple
Waterloo
Waterloo East Commercial Historic District
Waterloo
YMCA Building
Waterloo
Wild, Daniel and Margaret, House
Cedar Falls
Black Hawk County Soldiers Memorial Hall
Waterloo
Snowden House
Waterloo
Waterloo Public Library (West Branch)
Waterloo
LaPorte City Town Hall and Fire Station
La Porte City
Bennington No. 4
Waterloo
Dunsmore House
Waterloo
Cotton Theater
Cedar Falls
Waterloo West Commercial Historic District
Waterloo
La Porte City Station
La Porte City
Walnut Street Historic District
Waterloo
Syndicate Block
La Porte City
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Everything a full report reveals about Black Hawk County, Iowa

This page charts the census history of Black Hawk County, Iowa. A full Aubrey report for an address here pulls together everything the historical record holds about the ground, from the earliest settlement to the twentieth century:

Overview
An interactive map of the location with historic sites, battles and Native heritage plotted, and its full story era by era.
The Land
The historic sites and place names around the location, and how this land was settled and used.
Geology
The bedrock beneath the site, its age and rock type, reaching back millions of years.
LiDAR Terrain
Laser-scanned terrain that reveals earthworks and old features hidden in the landscape.
Conflict & War
The battles, raids and skirmishes fought near here, across every era of American conflict.
The Civil War
The Civil War on this ground, 1861 to 1865: who held it, and the battles, camps and regiments nearby.
The Soldiers
The men who marched from here in the Civil War, named and traced where the record allows.
Native Heritage
The Native nations who held this land, mapped across time from before European contact to today.
Settlement
Who claimed and held this ground, from Indigenous homelands through the colonial powers to the United States.
The Community
How the town grew, who came, and what kind of place it became, traced through the census record.
Rivers & Rail
The rivers, canals and railroads that connected this place between 1830 and 1911.
Notable People
The people born, buried or genuinely tied to this exact place, with their stories.
Historical Maps
Historic maps of the location layered over how it looks today.
Finds & Access
Museum objects tied to the area, and the laws on searching, collecting and access here.
Literature
The old books, county histories and archives that mention this place, quoted with their sources.
Spotlight
A deep dive into the most remarkable, lesser-known history of the place, traced back to the record.
Points of Interest
The most significant historic sites and landmarks near the location, and why they matter.
Timeline
The whole story of the location told era by era, from first peoples to the present day.
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Frequently asked about Black Hawk

When does Black Hawk first appear in the US census?
Black Hawk, Iowa first appears in the federal census in 1850, with a recorded population of 135.
What is the population of Black Hawk?
At the most recent federal census (2020), Black Hawk had a recorded population of 131,144.
When did Black Hawk's population peak?
Black Hawk's recorded population peaked at 137,961 in 1980.
How many historic places are in Black Hawk?
50 sites are listed on the National Register of Historic Places in Black Hawk, Iowa.
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