Carroll County, Iowa Facts for Kids

Quick facts for kids 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	36.4/sq mi (14.06/km²)
Time zone	UTC−6 (Central)
• Summer (DST)	UTC−5 (CDT)
Congressional district	4th

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

History
Geography
- Major highways
- Adjacent counties
Demographics
- 2020 census
- 2010 census
Communities
- Townships
- Population ranking
See also

History

Carroll County was formed on January 15, 1851, from sections of Pottawattamie County. It was named after Charles Carroll 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

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.

Major highways

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

Adjacent counties

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

Demographics

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%
2023 (est.)	20,522	−1.4%
U.S. Decennial Census 1790-1960 1900-1990 1990-2000 2010-2018

Population of Carroll County from US census data

2020 census

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.

2010 census

The 2010 census recorded a population of 20,816 in the county, with a population density of 36.58/sq mi (14.12/km²). There were 9,376 housing units, of which 8,683 were occupied.

Communities

Townships

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

The population ranking of the following table is based on the 2020 census of Carroll County. † 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

Carroll County, Iowa facts for kids

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