Henderson County, Illinois facts for kids

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Henderson County, Illinois
Map

Location in the state of Illinois
Map of the USA highlighting Illinois
Illinois's location in the U.S.
Statistics
Founded 1841
Seat Oquawka
Largest village Oquawka
Area
 - Total
 - Land
 - Water

395 sq mi (1,023 km²)
379 sq mi (982 km²)
16 sq mi (41 km²), 4.1%
Population
 - (2010)
 - Density

7,331
19/sq mi (7/km²)
Time zone Central: UTC-6/-5
Named for: Richard Henderson

Henderson County is a county located in the U.S. state of Illinois. According to the 2010 census, it has a population of 7,331. Its county seat is Oquawka.

Henderson County is part of the Burlington, IA–IL Micropolitan Statistical Area.

History

Henderson County was formed in 1841 out of Warren County. It was named for Henderson County, Kentucky, which was named for Richard Henderson, founder of the Transylvania Company, an early attempt to organize what later became Kentucky around 1775.

Geography

According to the U.S. Census Bureau, the county has a total area of 395 square miles (1,020 km2), of which 379 square miles (980 km2) is land and 16 square miles (41 km2) (4.1%) is water.

Climate and weather

Weather chart for Oquawka, Illinois
J F M A M J J A S O N D
 
 
1.3
 
30
15
 
 
1.5
 
36
21
 
 
3
 
49
31
 
 
3.6
 
62
43
 
 
4.4
 
72
54
 
 
4.5
 
82
63
 
 
4.5
 
85
67
 
 
3.9
 
83
65
 
 
3.6
 
76
57
 
 
2.9
 
65
46
 
 
2.7
 
49
33
 
 
2.1
 
35
21
temperatures in °F
precipitation totals in inches
source: The Weather Channel

In recent years, average temperatures in the county seat of Oquawka have ranged from a low of 15 °F (−9 °C) in January to a high of 85 °F (29 °C) in July, although a record low of −26 °F (−32 °C) was recorded in February 1996 and a record high of 105 °F (41 °C) was recorded in August 1983. Average monthly precipitation ranged from 1.31 inches (33 mm) in January to 4.48 inches (114 mm) in July.

Major highways

  • US 34.svg U.S. Highway 34
  • Illinois 94.svg Illinois Route 94
  • Illinois 96.svg Illinois Route 96
  • Illinois 116.svg Illinois Route 116
  • Illinois 164.svg Illinois Route 164

Adjacent counties

Demographics

USA Henderson County, Illinois age pyramid
2000 census age pyramid for Henderson County
Historical population
Census Pop.
1850 4,612
1860 9,501 106.0%
1870 12,582 32.4%
1880 10,722 −14.8%
1890 9,876 −7.9%
1900 10,836 9.7%
1910 9,724 −10.3%
1920 9,770 0.5%
1930 8,778 −10.2%
1940 8,949 1.9%
1950 8,416 −6.0%
1960 8,237 −2.1%
1970 8,451 2.6%
1980 9,114 7.8%
1990 8,096 −11.2%
2000 8,213 1.4%
2010 7,331 −10.7%
Est. 2015 6,995 −4.6%
U.S. Decennial Census
1790-1960 1900-1990
1990-2000 2010-2013

As of the 2010 United States Census, there were 7,331 people, 3,149 households, and 2,127 families residing in the county. The population density was 19.3 inhabitants per square mile (7.5/km2). There were 3,827 housing units at an average density of 10.1 per square mile (3.9/km2). The racial makeup of the county was 98.2% white, 0.2% Asian, 0.2% American Indian, 0.2% black or African American, 0.1% Pacific islander, 0.2% from other races, and 1.0% from two or more races. Those of Hispanic or Latino origin made up 1.1% of the population. In terms of ancestry, 24.4% were German, 14.5% were Irish, 11.9% were English, 5.9% were Swedish, and 5.0% were American.

Of the 3,149 households, 26.9% had children under the age of 18 living with them, 54.9% were married couples living together, 8.7% had a female householder with no husband present, 32.5% were non-families, and 27.3% of all households were made up of individuals. The average household size was 2.31 and the average family size was 2.78. The median age was 47.2 years.

The median income for a household in the county was $43,450 and the median income for a family was $55,154. Males had a median income of $41,052 versus $27,426 for females. The per capita income for the county was $22,492. About 7.8% of families and 11.4% of the population were below the poverty line, including 13.3% of those under age 18 and 8.3% of those age 65 or over.

Communities

City

Villages

Unincorporated communities

Townships

Henderson County is divided into eleven townships:

  • Bald Bluff
  • Biggsville
  • Carman
  • Gladstone
  • Lomax
  • Media
  • Oquawka
  • Raritan
  • Rozetta
  • Stronghurst
  • Terre Haute

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