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| Black Hawk County, Iowa | |
 Black Hawk County Courthouse in Waterloo
| |
 Location in the state of Iowa | |
 Iowa's location in the U.S. | |
| Founded | 1843 |
|---|---|
| Named for | Black Hawk |
| Seat | Waterloo |
| Largest city | Waterloo |
| Area - Total - Land - Water |
573 sq mi (1,484 km²) 566 sq mi (1,466 km²) 6.9 sq mi (18 km²), 1.2 |
| Population - (2020) - Density |
131,144 |
| Congressional district | 1st |
| Time zone | Central: UTC-6/-5 |
| Website | https://www.blackhawkcounty.iowa.gov/ |
Black Hawk County is a county in the northeastern part of U.S. state of Iowa. As of the 2020 census, the population was 131,144,[1] making it Iowa's fifth-most populous county. The county seat is Waterloo.[2]
Black Hawk County is part of the Waterloo-Cedar Falls, IA Metropolitan Statistical Area.[3]
History[]
Black Hawk County was formed on February 17, 1853, from sections of Buchanan County. It was named after Black Hawk, a Sauk leader during the 1832 Black Hawk War.
Geography[]
According to the U.S. Census Bureau, the county has an area of 573 square miles (1,480 km2), of which 566 square miles (1,470 km2) is land and 6.9 square miles (18 km2) (1.2%) is water.[4]
The Cedar River roughly divides the county in half from the northwest to the southeast corner. The land is mostly level since much of it is on the river's flood plain.
Major highways[]
Interstate 380- U.S. Route 20
- U.S. Route 63
- U.S. Route 218
- Iowa Highway 21
- Iowa Highway 27
- Iowa Highway 57
- Iowa Highway 58
- Iowa Highway 175
- Iowa Highway 281
Adjacent counties[]
- Bremer County (north)
- Buchanan County (east)
- Benton County (southeast)
- Tama County (southwest)
- Grundy County (west)
- Butler County (northwest)
- Fayette County (northeast)
Demographics[]
| Historical populations | |||
|---|---|---|---|
| Census | Pop. | %± | |
| 1850 | 135 | ||
| 1860 | 8,244 | 6,006.7% | |
| 1870 | 21,706 | 163.3% | |
| 1880 | 23,913 | 10.2% | |
| 1890 | 24,219 | 1.3% | |
| 1900 | 32,399 | 33.8% | |
| 1910 | 44,865 | 38.5% | |
| 1920 | 56,570 | 26.1% | |
| 1930 | 69,146 | 22.2% | |
| 1940 | 79,946 | 15.6% | |
| 1950 | 100,448 | 25.6% | |
| 1960 | 122,482 | 21.9% | |
| 1970 | 132,916 | 8.5% | |
| 1980 | 137,961 | 3.8% | |
| 1990 | 123,798 | −10.3% | |
| 2000 | 128,012 | 3.4% | |
| 2010 | 131,090 | 2.4% | |
| U.S. Decennial Census[5] 1790-1960[6] 1900-1990[7] 1990-2000[8] 2010-2020[9] | |||
Population of Black Hawk County from US census data
2020 census[]
The 2020 census recorded a population of 131,144 in the county, with a population density of 229.5011/sq mi (88.6109/km2). 94.55% of the population reported being of one race. 73.49% were non-Hispanic White, 10.43% were Black, 4.92% were Hispanic, 0.32% were Native American, 2.61% were Asian, 0.65% were Native Hawaiian or Pacific Islander and 7.57% were some other race or more than one race. There were 58,559 housing units of which 54,223 were occupied.[1]
2010 census[]
The 2010 census recorded a population of 131,090 in the county, with a population density of 231.20/sq mi (89.27/km2). There were 55,887 housing units, of which 52,470 were occupied.[10]
2000 census[]
2000 Census Age Pyramid for Black Hawk County
At the 2000 census there were 128,012 people, 49,683 households, and 31,946 families in the county. The population density was 226 people per square mile (87/km2). There were 51,759 housing units at an average density of 91 per square mile (35/km2). The racial makeup of the county was 88.42% White, 7.95% Black or African American, 0.18% Native American, 0.98% Asian, 0.04% Pacific Islander, 0.93% from other races, and 1.49% from two or more races. 1.84%.[11] were Hispanic or Latino of any race.
Of the 49,683 households 29.50% had children under the age of 18 living with them, 50.20% were married couples living together, 10.80% had a female householder with no husband present, and 35.70% were non-families. 27.10% of households were one person and 10.90% were one person aged 65 or older. The average household size was 2.45 and the average family size was 2.97.
Age spread: 23.10% under the age of 18, 15.70% from 18 to 24, 25.20% from 25 to 44, 22.00% from 45 to 64, and 14.00% 65 or older. The median age was 34 years. For every 100 females, there were 92.30 males. For every 100 females age 18 and over, there were 88.80 males.
The median household income was $37,266 and the median family income was $47,398. Males had a median income of $33,138 versus $23,394 for females. The per capita income for the county was $18,885. About 7.90% of families and 13.10% of the population were below the poverty line, including 14.40% of those under age 18 and 8.90% of those age 65 or over.
Communities[]
Cities[]
- Cedar Falls
- Dunkerton
- Elk Run Heights
- Evansdale
- Gilbertville
- Hudson
- Janesville
- Jesup
- La Porte City
- Raymond
- Waterloo
Census-designated place[]
- Washburn
Other unincorporated communities[]
- Blessing
- Dewar
- Eagle Center
- Finchford
- Glasgow
- Voorhies
Townships[]
Black Hawk County is divided into seventeen townships:
- Barclay
- Bennington
- Big Creek
- Black Hawk
- Cedar
- Cedar Falls
- Eagle
- East Waterloo
- Fox
- Lester
- Lincoln
- Mount Vernon
- Orange
- Poyner
- Spring Creek
- Union
- Washington
Population ranking[]
The population ranking of the following table is based on the 2020 census of Black Hawk County.[1]
† county seat
| Rank | City/Town/etc. | Municipal type | Population (2020 Census) |
|---|---|---|---|
| 1 | † Waterloo | City | 67,314 |
| 2 | Cedar Falls | City | 40,713 |
| 3 | Evansdale | City | 4,561 |
| 4 | Hudson | City | 2,546 |
| 5 | Jesup (mostly in Buchanan County) | City | 193 (2508 total) |
| 6 | La Porte City | City | 2,284 |
| 7 | Elk Run Heights | City | 1,069 |
| 8 | Janesville (mostly in Bremer County) | City | 115 (1034 total) |
| 9 | Washburn | CDP | 870 |
| 10 | Dunkerton | City | 842 |
| 11 | Gilbertville | City | 794 |
| 12 | Raymond | City | 759 |
Politics[]
Black Hawk County has been a Democratic stronghold in Iowa since the late 1980s. In presidential politics, it is one of the most Democratic counties in Iowa. As the state swung hard to the right in the 2010s and 2020s, Black Hawk County -- as a major population center, in accordance with most other population centers nationwide -- has remained staunchly Democratic.
| Year | Republican | Democratic | Third party | |||
|---|---|---|---|---|---|---|
| No. | % | No. | % | No. | % | |
| 2020 | 29,640 | 44.51% | 35,647 | 53.53% | 1,306 | 1.96% |
| 2016 | 27,476 | 42.66% | 32,233 | 50.05% | 4,696 | 7.29% |
| 2012 | 26,235 | 39.07% | 39,821 | 59.31% | 1,085 | 1.62% |
| 2008 | 24,662 | 38.07% | 39,184 | 60.48% | 941 | 1.45% |
| 2004 | 28,046 | 43.89% | 35,392 | 55.38% | 469 | 0.73% |
| 2000 | 23,468 | 42.60% | 30,112 | 54.66% | 1,505 | 2.73% |
| 1996 | 19,322 | 36.38% | 29,651 | 55.83% | 4,136 | 7.79% |
| 1992 | 21,398 | 34.77% | 29,584 | 48.06% | 10,568 | 17.17% |
| 1988 | 24,112 | 42.93% | 31,657 | 56.36% | 402 | 0.72% |
| 1984 | 32,262 | 50.23% | 31,467 | 48.99% | 504 | 0.78% |
| 1980 | 29,627 | 46.49% | 27,443 | 43.07% | 6,652 | 10.44% |
| 1976 | 30,994 | 50.22% | 29,508 | 47.81% | 1,213 | 1.97% |
| 1972 | 30,929 | 57.51% | 21,721 | 40.39% | 1,132 | 2.10% |
| 1968 | 25,594 | 51.65% | 21,097 | 42.57% | 2,863 | 5.78% |
| 1964 | 19,744 | 39.08% | 30,716 | 60.80% | 56 | 0.11% |
| 1960 | 28,435 | 54.11% | 24,078 | 45.82% | 38 | 0.07% |
| 1956 | 28,250 | 57.99% | 20,403 | 41.88% | 66 | 0.14% |
| 1952 | 28,671 | 62.01% | 17,360 | 37.55% | 203 | 0.44% |
| 1948 | 16,041 | 44.28% | 19,603 | 54.11% | 586 | 1.62% |
| 1944 | 15,687 | 48.37% | 16,593 | 51.16% | 154 | 0.47% |
| 1940 | 17,132 | 49.61% | 17,305 | 50.11% | 95 | 0.28% |
| 1936 | 13,666 | 43.14% | 16,793 | 53.01% | 1,222 | 3.86% |
| 1932 | 14,746 | 49.54% | 14,660 | 49.25% | 359 | 1.21% |
| 1928 | 19,409 | 69.35% | 8,467 | 30.25% | 113 | 0.40% |
| 1924 | 15,813 | 65.29% | 2,981 | 12.31% | 5,427 | 22.41% |
| 1920 | 16,920 | 76.56% | 4,000 | 18.10% | 1,181 | 5.34% |
| 1916 | 6,742 | 59.34% | 4,270 | 37.58% | 349 | 3.07% |
| 1912 | 1,601 | 15.03% | 3,702 | 34.76% | 5,346 | 50.20% |
| 1908 | 5,437 | 59.67% | 3,127 | 34.32% | 548 | 6.01% |
| 1904 | 5,236 | 66.90% | 1,861 | 23.78% | 730 | 9.33% |
| 1900 | 5,010 | 64.39% | 2,512 | 32.28% | 259 | 3.33% |
| 1896 | 4,643 | 66.05% | 2,167 | 30.83% | 220 | 3.13% |
| 1892 | 3,483 | 57.08% | 2,544 | 41.69% | 75 | 1.23% |
| 1888 | 3,106 | 58.50% | 2,127 | 40.06% | 76 | 1.43% |
| 1884 | 3,153 | 60.21% | 2,084 | 39.79% | 0 | 0.00% |
| 1880 | 3,014 | 64.57% | 1,558 | 33.38% | 96 | 2.06% |
See also[]
- National Register of Historic Places listings in Black Hawk County, Iowa
- Impact of the 2019–20 coronavirus pandemic on the meat industry in the United States
References[]
- ^ a b c "2020 Census State Redistricting Data". United states Census Bureau. https://www2.census.gov/programs-surveys/decennial/2020/data/01-Redistricting_File--PL_94-171/Iowa/.
- ^ "Find a County". National Association of Counties. http://www.naco.org/Counties/Pages/FindACounty.aspx.
- ^ United States Office of Management and Budget. "Update of Statistical Area Definitions and Guidance on Their Uses" (PDF). pp. 5, 36.. https://www.whitehouse.gov/omb/bulletins/fy2006/b06-01.pdf.
- ^ "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. 2011-02-12. https://www.census.gov/geographies/reference-files/time-series/geo/gazetteer-files.html.
- ^ "U.S. Decennial Census". United States Census Bureau. https://www.census.gov/programs-surveys/decennial-census.html.
- ^ "Historical Census Browser". University of Virginia Library. http://mapserver.lib.virginia.edu.
- ^ "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. https://www.census.gov/population/cencounts/ia190090.txt.
- ^ "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000". United States Census Bureau. https://www.census.gov/population/www/cen2000/briefs/phc-t4/tables/tab02.pdf.
- ^ "State & County QuickFacts". United States Census Bureau. http://quickfacts.census.gov/qfd/states/19/19013.html.
- ^ "Population and Housing Occupancy Status: 2010 - State -- County". United States Census Bureau American FactFinder. http://factfinder.census.gov/faces/tableservices/jsf/pages/productview.xhtml?pid=DEC_10_PL_GCTPL2.ST05&prodType=table.
- ^ "U.S. Census website". United States Census Bureau. https://www.census.gov.
- ^ Leip, David. "Dave Leip's Atlas of U.S. Presidential Elections". http://uselectionatlas.org/RESULTS.
External links[]
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Butler County | Bremer County | Fayette County |
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| Grundy County | 
|
Buchanan County | ||
   Black Hawk County, Iowa | ||||
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| Tama County | Benton County |
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| This page uses content from the English language Wikipedia. The original content was at Black Hawk County, Iowa. The list of authors can be seen in the page history. As with this Familypedia wiki, the content of Wikipedia is available under the Creative Commons License. |