Carroll County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 20,760.[1] Its county seat is Carroll.[2] The county is named in honor of Charles Carroll of Carrollton, signer of the Declaration of Independence.

Carroll County
Carroll County Courthouse
Map of Iowa highlighting Carroll County
Location within the U.S. state of Iowa
Map of the United States highlighting Iowa
Iowa's location within the U.S.
Coordinates: 42°02′14″N 94°51′32″W / 42.037222222222°N 94.858888888889°W / 42.037222222222; -94.858888888889
Country United States
State Iowa
Founded1851
Named forCharles Carroll of Carrollton
SeatCarroll
Largest cityCarroll
Area
 • Total
570 sq mi (1,500 km2)
 • Land569 sq mi (1,470 km2)
 • Water0.8 sq mi (2 km2)  0.1%
Population
 (2020)
 • Total
20,760
 • Density36/sq mi (14/km2)
Time zoneUTC−6 (Central)
 • Summer (DST)UTC−5 (CDT)
Congressional district4th
Websitewww.carrollcountyiowa.gov

History

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Carroll County was formed on January 15, 1851, from sections of Pottawattamie County. It was named after Charles Carroll[3] of Carrollton, Maryland, the only Roman Catholic and longest-living signer of the Declaration of Independence. In 1855, the county government was established in Carrollton and in 1858, the first courthouse was built. In 1869, the seat was moved to Carroll City (today Carroll) which was centrally located and connected to the Chicago and North Western Transportation Company. The courthouse was destroyed in 1886 by fire. The present courthouse was erected in 1965. However the courthouse is set to go under construction in the near future.

Geography

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According to the U.S. Census Bureau, the county has a total area of 570 square miles (1,500 km2), of which 569 square miles (1,470 km2) is land and 0.8 square miles (2.1 km2) (0.1%) is water.[4]

 
Soils of Carroll County

Major highways

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Adjacent counties

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Demographics

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Historical population
CensusPop.Note
1860281
18702,451772.2%
188012,351403.9%
189018,82552.4%
190020,3197.9%
191020,117−1.0%
192021,5497.1%
193022,3263.6%
194022,7702.0%
195023,0651.3%
196023,4311.6%
197022,912−2.2%
198022,9510.2%
199021,423−6.7%
200021,4210.0%
201020,816−2.8%
202020,760−0.3%
2023 (est.)20,522[5]−1.1%
U.S. Decennial Census[6]
1790-1960[7] 1900-1990[8]
1990-2000[9] 2010-2018[10]
 
Population of Carroll County from US census data

2020 census

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2022 US Census population pyramid for Carroll County from ACS 5-year estimates

The 2020 census recorded a population of 20,760 in the county, with a population density of 35.845/sq mi (13.840/km2). 97.14% of the population reported being of one race. 91.28% were non-Hispanic White, 1.26% were Black, 2.86% were Hispanic, 0.15% were Native American, 0.36% were Asian, 0.00% were Native Hawaiian or Pacific Islander and 4.08% were some other race or more than one race. There were 9,490 housing units of which 8,764 were occupied.[1]

2010 census

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The 2010 census recorded a population of 20,816 in the county, with a population density of 36.58/sq mi (14.125/km2). There were 9,376 housing units, of which 8,683 were occupied.[11]

2000 census

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As of the census[12] of 2000, there were 21,421 people, 8,486 households, and 5,668 families residing in the county. The population density was 38 people per square mile (15 people/km2). There were 9,019 housing units at an average density of 16 units per square mile (6.2 units/km2). The racial makeup of the county was 98.87% White, 0.18% Black or African American, 0.10% Native American, 0.34% Asian, 0.20% from other races, and 0.31% from two or more races. 0.54% of the population were Hispanic or Latino of any race.

There were 8,486 households, out of which 32.90% had children under the age of 18 living with them, 57.00% were married couples living together, 6.80% had a female householder with no husband present, and 33.20% were non-families. 29.60% of all households were made up of individuals, and 15.50% had someone living alone who was 65 years of age or older. The average household size was 2.46 and the average family size was 3.07.

In the county, the population was spread out, with 26.90% under the age of 18, 7.40% from 18 to 24, 25.90% from 25 to 44, 21.00% from 45 to 64, and 18.70% who were 65 years of age or older. The median age was 39 years. For every 100 females there were 95.10 males. For every 100 females age 18 and over, there were 92.00 males.

The median income for a household in the county was $37,275, and the median income for a family was $47,040. Males had a median income of $30,074 versus $21,528 for females. The per capita income for the county was $18,595. About 4.50% of families and 6.50% of the population were below the poverty line, including 6.10% of those under age 18 and 8.20% of those age 65 or over.

Communities

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Cities

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Townships

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Carroll County is divided into sixteen townships:

Population ranking

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The population ranking of the following table is based on the 2020 census of Carroll County.[1] county seat

Rank City/Town/etc. Municipal type Population (2020 Census)
1 Carroll City 10,321
2 Manning City 1,455
3 Coon Rapids (partially in Guthrie County) City 1,300
4 Glidden City 1,151
5 Arcadia City 525
6 Breda City 500
7 Templeton City 352
8 Dedham City 224
9 Halbur City 243
10 Lidderdale City 166
11 Lanesboro City 119
12 Ralston (partially in Greene County) City 76 (81 total)
13 Willey City 73

Politics

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United States presidential election results for Carroll County, Iowa[13]
Year Republican Democratic Third party(ies)
No.  % No.  % No.  %
2020 7,737 68.26% 3,454 30.47% 144 1.27%
2016 6,638 62.96% 3,309 31.38% 597 5.66%
2012 5,601 52.47% 4,947 46.35% 126 1.18%
2008 4,922 47.35% 5,302 51.01% 171 1.65%
2004 5,762 54.75% 4,689 44.56% 73 0.69%
2000 4,879 50.99% 4,463 46.65% 226 2.36%
1996 3,392 38.59% 4,333 49.29% 1,065 12.12%
1992 3,439 36.30% 3,800 40.11% 2,236 23.60%
1988 3,701 39.91% 5,437 58.63% 135 1.46%
1984 5,021 49.83% 4,960 49.22% 96 0.95%
1980 5,017 51.53% 3,885 39.90% 835 8.58%
1976 4,094 42.61% 5,333 55.51% 181 1.88%
1972 4,415 47.55% 4,608 49.63% 262 2.82%
1968 3,927 42.68% 4,809 52.26% 466 5.06%
1964 2,387 23.39% 7,807 76.49% 13 0.13%
1960 4,648 39.66% 7,064 60.27% 9 0.08%
1956 5,816 53.29% 5,085 46.60% 12 0.11%
1952 7,473 64.27% 4,139 35.60% 16 0.14%
1948 3,974 40.61% 5,711 58.36% 101 1.03%
1944 4,833 50.04% 4,799 49.68% 27 0.28%
1940 5,376 49.22% 5,526 50.59% 21 0.19%
1936 3,259 31.03% 6,285 59.84% 959 9.13%
1932 2,265 23.84% 7,174 75.52% 60 0.63%
1928 4,014 39.47% 6,134 60.32% 21 0.21%
1924 3,590 41.06% 1,994 22.80% 3,160 36.14%
1920 6,320 72.89% 2,174 25.07% 177 2.04%
1916 2,408 53.10% 2,085 45.98% 42 0.93%
1912 664 15.51% 2,326 54.32% 1,292 30.17%
1908 1,865 41.93% 2,510 56.43% 73 1.64%
1904 2,290 51.22% 2,040 45.63% 141 3.15%
1900 2,224 47.34% 2,434 51.81% 40 0.85%
1896 2,066 45.67% 2,417 53.43% 41 0.91%

See also

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References

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  1. ^ a b c "2020 Census State Redistricting Data". census.gov. United states Census Bureau. Retrieved August 12, 2021.
  2. ^ "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.
  3. ^ Gannett, Henry (1905). The Origin of Certain Place Names in the United States. Govt. Print. Off. pp. 70.
  4. ^ "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. February 12, 2011. Retrieved April 23, 2011.
  5. ^ "Annual Estimates of the Resident Population for Counties: April 1, 2020 to July 1, 2023". United States Census Bureau. Retrieved April 2, 2024.
  6. ^ "U.S. Decennial Census". United States Census Bureau. Retrieved July 14, 2014.
  7. ^ "Historical Census Browser". University of Virginia Library. Retrieved July 14, 2014.
  8. ^ "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved July 14, 2014.
  9. ^ "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000" (PDF). United States Census Bureau. Archived (PDF) from the original on March 27, 2010. Retrieved July 14, 2014.
  10. ^ "State & County QuickFacts". United States Census Bureau. Archived from the original on September 5, 2015. Retrieved July 14, 2014.
  11. ^ "Population and Housing Occupancy Status: 2010 – State – County". United States Census Bureau American FactFinder. Archived from the original on September 29, 2015. Retrieved March 8, 2011.[dead link]
  12. ^ "U.S. Census website". United States Census Bureau. Retrieved January 31, 2008.
  13. ^ Leip, David. "Dave Leip's Atlas of U.S. Presidential Elections". uselectionatlas.org. Retrieved April 25, 2018.
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42°02′14″N 94°51′32″W / 42.03722°N 94.85889°W / 42.03722; -94.85889