Carroll County, Iowa

County in Iowa, United States

U.S. county in Iowa

Carroll County

U.S. county

Carroll County Courthouse

Location within the U.S. state of Iowa

Iowa's location within the U.S.

Country|  United States
State|  Iowa
Founded| 1851
Named for| Charles Carroll of Carrollton
Seat| Carroll
Largest city| Carroll
Area

• Total| 570 sq mi (1,500 km2)
• Land| 569 sq mi (1,470 km2)
• Water| 0.8 sq mi (2 km2)  0.1%
Population

(2020)

• Total| 20,760
• Density| 36/sq mi (14/km2)
Time zone| UTC−6 (Central)
• Summer (DST)| UTC−5 (CDT)
Congressional district| 4th
Website| www.carrollcountyiowa.gov

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.

## Contents

* 1 History
* 2 Geography
* 2.1 Major highways
* 2.2 Adjacent counties
* 3 Demographics
* 3.1 2020 census
* 3.2 2010 census
* 3.3 2000 census
* 4 Communities
* 4.1 Townships
* 4.2 Population ranking
* 5 Politics
* 6 See also
* 7 References
* 8 External links

## 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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* U.S. Highway 30
* U.S. Highway 71
* Iowa Highway 141

### Adjacent counties

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* Sac County (northwest)
* Calhoun County (northeast)
* Greene County (east)
* Guthrie County (southeast)
* Audubon County (south)
* Crawford County (west)

## Demographics

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Historical population

Census | Pop. |  | %±
1860| 281| | —
1870| 2,451| | 772.2%
1880| 12,351| | 403.9%
1890| 18,825| | 52.4%
1900| 20,319| | 7.9%
1910| 20,117| | −1.0%
1920| 21,549| | 7.1%
1930| 22,326| | 3.6%
1940| 22,770| | 2.0%
1950| 23,065| | 1.3%
1960| 23,431| | 1.6%
1970| 22,912| | −2.2%
1980| 22,951| | 0.2%
1990| 21,423| | −6.7%
2000| 21,421| | 0.0%
2010| 20,816| | −2.8%
2020| 20,760| | −0.3%
U.S. Decennial Census[5]
1790-1960[6] 1900-1990[7]
1990-2000[8] 2010-2018[9]
Population of Carroll County from US census data

### 2020 census

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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.[10]

### 2000 census

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2000 Census Age Pyramid for Carroll County

As of the census[11] 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/km2). There were 9,019 housing units at an average density of 16 per square mile (6/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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* Arcadia
* Breda
* Carroll
* Coon Rapids
* Dedham
* Glidden
* Halbur
* Lanesboro
* Lidderdale
* Manning
* Ralston
* Templeton
* Willey

### Townships

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Carroll County is divided into sixteen townships:

* Arcadia
* Eden
* Ewoldt
* Glidden
* Grant
* Jasper
* Kniest
* Maple River
* Newton
* Pleasant Valley
* Richland
* Roselle
* Sheridan
* Union
* Washington
* Wheatland

### 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[12] Year  | Republican | Democratic | Third party

|
|
|

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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* National Register of Historic Places listings in Carroll County, Iowa

## 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. ^ "U.S. Decennial Census". United States Census Bureau. Retrieved July 14, 2014.
6. ^ "Historical Census Browser". University of Virginia Library. Retrieved July 14, 2014.
7. ^ "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved July 14, 2014.
8. ^ "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000" (PDF). United States Census Bureau. Retrieved July 14, 2014.
9. ^ "State & County QuickFacts". United States Census Bureau. Archived from the original on September 5, 2015. Retrieved July 14, 2014.
10. ^ "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]
11. ^ "U.S. Census website". United States Census Bureau. Retrieved January 31, 2008.
12. ^ Leip, David. "Dave Leip's Atlas of U.S. Presidential Elections". uselectionatlas.org. Retrieved April 25, 2018.

## External links

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Wikimedia Commons has media related to Carroll County, Iowa.

* Carroll County government's website
* St. Anthony Regional Hospital

Places adjacent to Carroll County, Iowa

| Sac County |  | Calhoun County

|
|

|  |
Crawford County |

Carroll County, Iowa

| Greene County
|  |
| Audubon County | Guthrie County

* v
* t
* e

Municipalities and communities of Carroll County, Iowa, United States

County seat: Carroll

Cities|

* Arcadia
* Breda
* Carroll
* Coon Rapids‡
* Dedham
* Glidden
* Halbur
* Lanesboro
* Lidderdale
* Manning
* Ralston‡
* Templeton
* Willey

Map of Iowa highlighting Carroll County

Townships|

* Arcadia
* Eden
* Ewoldt
* Glidden
* Grant
* Jasper
* Kniest
* Maple River
* Newton
* Pleasant Valley
* Richland
* Roselle
* Sheridan
* Union
* Washington
* Wheatland

Unincorporated
communities|

* Maple River

Footnotes|

‡This populated place also has portions in an adjacent county or counties

* United States portal

* v
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* e

State of Iowa

Des Moines (capital)

Topics|

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Largest cities|

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Counties|

* Adair
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* Van Buren
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* Washington
* Wayne
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* Winnebago
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* Woodbury
* Worth
* Wright

Coordinates: 42°02′14″N 94°51′32″W﻿ / ﻿42.03722°N 94.85889°W﻿ / 42.03722; -94.85889
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