Shelby County, Illinois

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Shelby County, Illinois
Shelby County Courthouse in Illinois.jpg
Shelby County Courthouse
Map of Illinois highlighting Shelby County
Location in the state of Illinois
Map of the United States highlighting Illinois
Illinois's location in the U.S.
Founded 1827
Named for Isaac Shelby
Seat Shelbyville
Largest city Shelbyville
Area
 • Total 768.07 sq mi (1,989 km2)
 • Land 758.52 sq mi (1,965 km2)
 • Water 9.55 sq mi (25 km2), 1.24%
Population
 • (2010) 22,363
 • Density 31/sq mi (12/km²)
Congressional district 15th
Time zone Central: UTC-6/-5
Website www.shelbycounty-il.com

Shelby County is a county located in the U.S. state of Illinois. According to the 2010 census, it had a population of 22,363, which is a decrease of 2.3% from 22,893 in 2000.[1] Its county seat is Shelbyville.[2]

Geography[edit]

According to the 2010 census, the county has a total area of 768.07 square miles (1,989.3 km2), of which 758.52 square miles (1,964.6 km2) (or 98.76%) is land and 9.55 square miles (24.7 km2) (or 1.24%) is water.[3]

Major highways[edit]

History[edit]

Shelby County was formed in 1827 out of Fayette County. It was named in honor of Isaac Shelby, Governor of Kentucky and participant in the American Revolutionary War.

Adjacent counties[edit]

Demographics[edit]

Historical population
Census Pop.
1830 2,972
1840 6,659 124.1%
1850 7,807 17.2%
1860 14,613 87.2%
1870 25,476 74.3%
1880 30,270 18.8%
1890 31,191 3.0%
1900 32,126 3.0%
1910 31,693 −1.3%
1920 29,601 −6.6%
1930 25,471 −14.0%
1940 26,290 3.2%
1950 24,434 −7.1%
1960 23,404 −4.2%
1970 22,589 −3.5%
1980 23,923 5.9%
1990 22,261 −6.9%
2000 22,893 2.8%
2010 22,363 −2.3%
Est. 2012 22,196 −0.7%
U.S. Decennial Census[5]
2012 Estimate[6]

As of the census of 2000,[7] there were 22,893 people, 9,056 households, and 6,502 families residing in the county. The population density was 30 people per square mile (12/km²). There were 10,060 housing units at an average density of 13 per square mile (5/km²). The racial makeup of the county was 98.94% White, 0.15% Black or African American, 0.14% Native American, 0.21% Asian American, 0.14% from other races, and 0.41% from two or more races. 0.48% of the population were Hispanic or Latino of any race. 35.1% were of German, 24.7% American, 10.7% Irish and 10.4% English ancestry.

There were 9,056 households out of which 31.00% had children under the age of 18 living with them, 61.20% were married couples living together, 7.10% had a female householder with no husband present, and 28.20% were non-families. 25.40% of all households were made up of individuals and 13.30% had someone living alone who was 65 years of age or older. The average household size was 2.50 and the average family size was 2.99.

In the county the population was spread out with 25.00% under the age of 18, 7.60% from 18 to 24, 26.20% from 25 to 44, 23.40% from 45 to 64, and 17.80% who were 65 years of age or older. The median age was 39 years. For every 100 females there were 97.50 males. For every 100 females age 18 and over, there were 94.70 males.

The median income for a household in the county was $37,313, and the median income for a family was $44,372. Males had a median income of $31,904 versus $21,075 for females. The per capita income for the county was $17,313. About 6.50% of families and 9.10% of the population were below the poverty line, including 11.90% of those under age 18 and 9.80% of those age 65 or over.

Cities and towns[edit]

Unincorporated communities[edit]

Townships[edit]

Shelby County is divided into these townships:

Climate and weather[edit]

Shelbyville, Illinois
Climate chart (explanation)
J F M A M J J A S O N D
 
 
2
 
34
19
 
 
1.9
 
41
24
 
 
3.3
 
52
33
 
 
3.7
 
65
43
 
 
4
 
75
53
 
 
4.1
 
83
62
 
 
4
 
87
66
 
 
3.3
 
85
63
 
 
3.1
 
80
56
 
 
3.1
 
68
45
 
 
3.9
 
52
35
 
 
3
 
39
24
Average max. and min. temperatures in °F
Precipitation totals in inches
Source: The Weather Channel[8]

In recent years, average temperatures in the county seat of Shelbyville have ranged from a low of 19 °F (−7 °C) in January to a high of 87 °F (31 °C) in July, although a record low of −26 °F (−32 °C) was recorded in January 1915 and a record high of 111 °F (44 °C) was recorded in July 1936. Average monthly precipitation ranged from 1.89 inches (48 mm) in February to 4.05 inches (103 mm) in June.[8]

See also[edit]

References[edit]

  1. ^ "Shelby County QuickFacts". United States Census Bureau. Retrieved 2011-11-05. 
  2. ^ "Find a County". National Association of Counties. Retrieved 2011-06-07. 
  3. ^ "Census 2010 U.S. Gazetteer Files: Counties". United States Census. Retrieved 2011-11-05. 
  4. ^ White, Jesse. Origin and Evolution of Illinois Counties. State of Illinois, March 2010. [1]
  5. ^ "U.S. Decennial Census". Census.gov. Retrieved July 28, 2013. 
  6. ^ "Annual Estimates of the Resident Population: April 1, 2010 to July 1, 2012". Census.gov. Retrieved July 28, 2013. 
  7. ^ "American FactFinder". United States Census Bureau. Retrieved 2008-01-31. 
  8. ^ a b "Monthly Averages for Shelbyville, Illinois". The Weather Channel. Retrieved 2011-01-27. 

Coordinates: 39°23′N 88°49′W / 39.39°N 88.81°W / 39.39; -88.81