Clay County, Illinois

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Clay County, Illinois
Clay County Courthouse in Louisville from north-northwest.jpg
Clay County Courthouse in Louisville
Map of Illinois highlighting Clay County
Location in the state of Illinois
Map of the United States highlighting Illinois
Illinois's location in the U.S.
Founded 1824
Named for Henry Clay
Seat Louisville
Largest city Flora
Area
 • Total 470 sq mi (1,217 km2)
 • Land 468 sq mi (1,212 km2)
 • Water 1.3 sq mi (3 km2), 0.3%
Population
 • (2010) 13,815
 • Density 29/sq mi (11/km²)
Congressional district 15th
Time zone Central: UTC-6/-5

Clay County is a county located in the U.S. state of Illinois. As of the 2010 census, the population was 13,815.[1] Its county seat is Louisville.[2]

In 1950, the U.S. Census Bureau placed the mean center of U.S. population in Clay County.[3]

History[edit]

Clay County was formed in 1824 out of portions of Wayne, Crawford, and Fayette counties. Its name is in honor of Henry Clay,[4] famous American statesman, member of the United States Senate from Kentucky and United States Secretary of State in the 19th century. Clay was an unsuccessful candidate for President in the year the County was named.

Geography[edit]

According to the U.S. Census Bureau, the county has a total area of 470 square miles (1,200 km2), of which 468 square miles (1,210 km2) is land and 1.3 square miles (3.4 km2) (0.3%) is water.[5]

Adjacent counties[edit]

Major highways[edit]

Climate and weather[edit]

Louisville, Illinois
Climate chart (explanation)
J F M A M J J A S O N D
 
 
2.7
 
38
21
 
 
2.5
 
44
25
 
 
4
 
55
34
 
 
4.1
 
67
43
 
 
4.3
 
76
53
 
 
4.3
 
85
62
 
 
3.9
 
89
65
 
 
3.3
 
87
63
 
 
3.2
 
80
56
 
 
3
 
69
45
 
 
4.1
 
55
35
 
 
3.4
 
43
25
Average max. and min. temperatures in °F
Precipitation totals in inches
Source: The Weather Channel[6]

In recent years, average temperatures in the county seat of Louisville have ranged from a low of 21 °F (−6 °C) in January to a high of 89 °F (32 °C) in July, although a record low of −25 °F (−32 °C) was recorded in January 1904 and a record high of 111 °F (44 °C) was recorded in July 1936. Average monthly precipitation ranged from 2.49 inches (63 mm) in February to 4.34 inches (110 mm) in June.[6]

Demographics[edit]

2000 census age pyramid for Clay County
Historical population
Census Pop.
1830 755
1840 3,228 327.5%
1850 4,289 32.9%
1860 9,336 117.7%
1870 15,875 70.0%
1880 16,192 2.0%
1890 16,772 3.6%
1900 19,553 16.6%
1910 18,661 −4.6%
1920 17,684 −5.2%
1930 16,155 −8.6%
1940 18,947 17.3%
1950 17,445 −7.9%
1960 15,815 −9.3%
1970 14,735 −6.8%
1980 15,283 3.7%
1990 14,460 −5.4%
2000 14,560 0.7%
2010 13,815 −5.1%
Est. 2013 13,566 −1.8%
U.S. Decennial Census[7]
1790-1960[8] 1900-1990[9]
1990-2000[10] 2010-2013[1]

As of the census[11] of 2000, there were 14,560 people, 5,839 households, and 4,005 families residing in the county. The population density was 31 people per square mile (12/km²). There were 6,394 housing units at an average density of 14 per square mile (5/km²). The racial makeup of the county was 98.52% White, 0.11% Black or African American, 0.23% Native American, 0.52% Asian, 0.01% Pacific Islander, 0.21% from other races, and 0.40% from two or more races. 0.60% of the population were Hispanic or Latino of any race. 38.5% were of American, 23.0% German, 10.5% English and 9.5% Irish ancestry according to Census 2000. 98.8% spoke English and 1.0% Spanish as their first language.

There were 5,839 households out of which 30.60% had children under the age of 18 living with them, 56.40% were married couples living together, 8.60% had a female householder with no husband present, and 31.40% were non-families. 27.90% of all households were made up of individuals and 14.80% had someone living alone who was 65 years of age or older. The average household size was 2.41 and the average family size was 2.94.

In the county the population was spread out with 23.90% under the age of 18, 8.00% from 18 to 24, 25.90% from 25 to 44, 23.00% from 45 to 64, and 19.20% who were 65 years of age or older. The median age was 40 years. For every 100 females there were 92.30 males. For every 100 females age 18 and over, there were 89.10 males.

The median income for a household in the county was $30,599, and the median income for a family was $36,675. Males had a median income of $27,813 versus $20,616 for females. The per capita income for the county was $15,771. About 9.00% of families and 11.80% of the population were below the poverty line, including 12.90% of those under age 18 and 12.30% of those age 65 or over.

Education[edit]

  • Clay City Community Unit District 10
  • Dieterich Community Unit School District 30
  • Effingham Community Unit School District 40
  • Flora Community Unit School District 35
  • Jasper County Community Unit School District 1
  • North Clay Community Unit School District 25
  • South Central Community Unit School District 401
  • West Richland Community Unit School District 2

Communities[edit]

Cities[edit]

Villages[edit]

Townships[edit]

Clay County is divided into these twelve townships:

See also[edit]

Coordinates: 38°46′N 88°29′W / 38.76°N 88.49°W / 38.76; -88.49

References[edit]

  1. ^ a b "State & County QuickFacts". United States Census Bureau. Retrieved July 4, 2014. 
  2. ^ "Find a County". National Association of Counties. Retrieved 2011-06-07. 
  3. ^ "Mean Center of Population for the United States: 1790 to 2000". United States Census Bureau. Retrieved 2011-09-17. 
  4. ^ Gannett, Henry (1905). The Origin of Certain Place Names in the United States. Govt. Print. Off. p. 83. 
  5. ^ "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. 2011-02-12. Retrieved 2011-04-23. 
  6. ^ a b "Monthly Averages for Louisville, Illinois". The Weather Channel. Retrieved 2011-01-27. 
  7. ^ "U.S. Decennial Census". United States Census Bureau. Retrieved July 4, 2014. 
  8. ^ "Historical Census Browser". University of Virginia Library. Retrieved July 4, 2014. 
  9. ^ "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved July 4, 2014. 
  10. ^ "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000". United States Census Bureau. Retrieved July 4, 2014. 
  11. ^ "American FactFinder". United States Census Bureau. Retrieved 2008-01-31. 

External links[edit]