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Carroll County, Illinois facts for kids

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Carroll County
Carroll County Courthouse
Carroll County Courthouse
Map of Illinois highlighting Carroll County
Location within the U.S. state of Illinois
Map of the United States highlighting Illinois
Illinois's location within the U.S.
Country  United States
State  Illinois
Founded 1839
Named for Charles Carroll
Seat Mount Carroll
Largest city Savanna
Area
 • Total 466 sq mi (1,210 km2)
 • Land 445 sq mi (1,150 km2)
 • Water 22 sq mi (60 km2)  4.6%
Population
 (2010)
 • Total 15,387
 • Estimate 
(2019)
14,305
 • Density 33.02/sq mi (12.749/km2)
Time zone UTC−6 (Central)
 • Summer (DST) UTC−5 (CDT)
Congressional district 17th

Carroll County is a county located in the U.S. state of Illinois. As of the 2010 census, the population was 15,387. Its county seat is Mount Carroll.

History

Carroll County was formed in 1839 out of Jo Daviess County. The county is named for Charles Carroll who signed the Declaration of Independence. Carroll, who died in 1832, was the last signer to die.

Geography

According to the U.S. Census Bureau, the county has a total area of 466 square miles (1,210 km2), of which 445 square miles (1,150 km2) is land and 22 square miles (57 km2) (4.6%) is water. The Mississippi Palisades State Park is in this county, just north of the city of Savanna. The Savanna Army Depot is located partly in this county.

Adjacent counties

National protected area

Major highways

  • US 52.svg US Route 52
  • Illinois 40.svg Illinois Route 40
  • Illinois 64.svg Illinois Route 64
  • Illinois 72.svg Illinois Route 72
  • Illinois 73.svg Illinois Route 73
  • Illinois 78.svg Illinois Route 78
  • Illinois 84.svg Illinois Route 84

Climate and weather

Weather chart for Mount Carroll, Illinois
J F M A M J J A S O N D
 
 
1.4
 
29
7
 
 
1.5
 
35
13
 
 
2.6
 
47
25
 
 
3.7
 
60
35
 
 
4.3
 
72
46
 
 
4.8
 
82
54
 
 
3.8
 
85
59
 
 
4.5
 
83
56
 
 
3.5
 
76
47
 
 
2.7
 
64
36
 
 
2.8
 
47
26
 
 
2
 
34
14
temperatures in °F
precipitation totals in inches
source: The Weather Channel

In recent years, average temperatures in the county seat of Mount Carroll have ranged from a low of 7 °F (−14 °C) in January to a high of 85 °F (29 °C) in July, although a record low of −31 °F (−35 °C) was recorded in January 1910 and a record high of 108 °F (42 °C) was recorded in July 1936. Average monthly precipitation ranged from 1.43 inches (36 mm) in January to 4.77 inches (121 mm) in June.

Demographics

USA Carroll County, Illinois age pyramid
2000 census age pyramid for Carroll County.
Historical population
Census Pop.
1840 1,023
1850 4,586 348.3%
1860 11,733 155.8%
1870 16,705 42.4%
1880 16,976 1.6%
1890 18,320 7.9%
1900 18,963 3.5%
1910 18,035 −4.9%
1920 19,345 7.3%
1930 18,433 −4.7%
1940 17,987 −2.4%
1950 18,976 5.5%
1960 19,507 2.8%
1970 19,276 −1.2%
1980 18,779 −2.6%
1990 16,805 −10.5%
2000 16,674 −0.8%
2010 15,387 −7.7%
2019 (est.) 14,305 −7.0%
U.S. Decennial Census
1790-1960 1900-1990
1990-2000 2010-2013

As of the 2010 United States Census, there were 15,387 people, 6,622 households, and 4,343 families residing in the county. The population density was 34.6 inhabitants per square mile (13.4/km2). There were 8,437 housing units at an average density of 19.0 per square mile (7.3/km2). The racial makeup of the county was 96.9% white, 0.8% black or African American, 0.3% Asian, 0.3% American Indian, 0.6% from other races, and 1.1% from two or more races. Those of Hispanic or Latino origin made up 2.8% of the population. In terms of ancestry, 40.4% were German, 14.0% were Irish, 11.2% were English, and 10.6% were American.

Of the 6,622 households, 26.3% had children under the age of 18 living with them, 53.1% were married couples living together, 8.2% had a female householder with no husband present, 34.4% were non-families, and 29.8% of all households were made up of individuals. The average household size was 2.29 and the average family size was 2.80. The median age was 46.5 years.

The median income for a household in the county was $44,805 and the median income for a family was $55,341. Males had a median income of $42,421 versus $27,552 for females. The per capita income for the county was $25,914. About 7.8% of families and 11.7% of the population were below the poverty line, including 18.4% of those under age 18 and 5.8% of those age 65 or over.

Communities

Cities

Villages

Townships

Carroll County is divided into these twelve townships:

  • Cherry Grove-Shannon
  • Elkhorn Grove
  • Fairhaven
  • Freedom
  • Mount Carroll
  • Rock Creek-Lima
  • Salem
  • Savanna
  • Washington
  • Woodland
  • Wysox
  • York

Education

  • West Carroll Community Unit School District 314

Notable people

See also

Kids robot.svg In Spanish: Condado de Carroll (Illinois) para niños

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