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Johnson County, Illinois

Johnson County, Illinois
Johnson County Courthouse in Vienna
Map of Illinois highlighting Johnson County
Location in the state of Illinois
Map of the United States highlighting Illinois
Illinois's location in the U.S.
Founded 1812
Named for Richard Mentor Johnson
Seat Vienna
Largest city Vienna
Area
 • Total 349 sq mi (904 km2)
 • Land 344 sq mi (891 km2)
 • Water 4.9 sq mi (13 km2), 1.4%
Population
 • (2010) 12,582
 • Density 37/sq mi (14/km²)
Congressional district 15th
Time zone Central: UTC-6/-5

Johnson County is a county located in the U.S. state of Illinois. According to the 2010 census, it has a population of 12,582.[1] Its county seat is Vienna.[2] It is located in the southern portion of Illinois known locally as "Little Egypt".

Contents

  • History 1
  • Geography 2
    • Climate and weather 2.1
    • Major highways 2.2
    • Adjacent counties 2.3
    • National protected areas 2.4
  • Demographics 3
    • 2010 3.1
    • 2000 3.2
  • Communities 4
    • City 4.1
    • Villages 4.2
    • Unincorporated communities 4.3
  • See also 5
  • References 6
  • Further reading 7

History

Richard M. Johnson

Johnson County was organized in 1812 out of Randolph County. It was named for Richard M. Johnson, who was then a U.S. Congressman from Kentucky.[3] In 1813, Johnson commanded a Kentucky regiment at the Battle of the Thames, after which he claimed to have killed Tecumseh in hand-to-hand combat. Johnson went on to be Vice President of the United States.

Geography

According to the U.S. Census Bureau, the county has a total area of 349 square miles (900 km2), of which 344 square miles (890 km2) is land and 4.9 square miles (13 km2) (1.4%) is water.[4]

Climate and weather

Vienna, Illinois
Climate chart ()
J F M A M J J A S O N D
 
 
3.4
 
 
43
25
 
 
3.4
 
 
50
29
 
 
4.6
 
 
60
38
 
 
4.7
 
 
71
46
 
 
5.2
 
 
79
55
 
 
4.1
 
 
87
63
 
 
3.8
 
 
90
67
 
 
3.6
 
 
90
65
 
 
3.3
 
 
84
58
 
 
3.2
 
 
73
47
 
 
4.7
 
 
59
39
 
 
4.4
 
 
47
29
Average max. and min. temperatures in °F
Precipitation totals in inches
Source: The Weather Channel[5]

In recent years, average temperatures in the county seat of Vienna have ranged from a low of 25 °F (−4 °C) in January to a high of 90 °F (32 °C) in July, although a record low of −20 °F (−29 °C) was recorded in January 1977 and a record high of 103 °F (39 °C) was recorded in August 2007. Average monthly precipitation ranged from 3.16 inches (80 mm) in October to 5.16 inches (131 mm) in May.[5]

Major highways

Adjacent counties

National protected areas

Demographics

2000 census age pyramid for Johnson County, skewed toward male because of the Vienna Correctional Center, an Illinois State Prison for men.[6]

2010

Whereas according to the 2010 U.S. Census Bureau:

2000

As of the 2010 United States Census, there were 12,582 people, 4,584 households, and 3,270 families residing in the county.[12] The population density was 36.6 inhabitants per square mile (14.1/km2). There were 5,598 housing units at an average density of 16.3 per square mile (6.3/km2).[4] The racial makeup of the county was 89.0% white, 8.0% black or African American, 0.2% Asian, 0.2% American Indian, 1.6% from other races, and 1.0% from two or more races. Those of Hispanic or Latino origin made up 3.0% of the population.[12] In terms of ancestry, 17.6% were German, 11.5% were Irish, 10.9% were English, and 6.5% were American.[13]

Of the 4,584 households, 28.8% had children under the age of 18 living with them, 59.2% were married couples living together, 8.3% had a female householder with no husband present, 28.7% were non-families, and 25.3% of all households were made up of individuals. The average household size was 2.41 and the average family size was 2.85. The median age was 42.2 years.[12]

The median income for a household in the county was $41,619 and the median income for a family was $47,423. Males had a median income of $48,047 versus $30,904 for females. The per capita income for the county was $16,402. About 11.1% of families and 13.6% of the population were below the poverty line, including 19.0% of those under age 18 and 10.7% of those age 65 or over.[14]

Communities

City

Villages

Unincorporated communities

See also

References

  1. ^ a b "State & County QuickFacts". United States Census Bureau. Retrieved July 6, 2014. 
  2. ^ "Find a County". National Association of Counties. Retrieved 2011-06-07. 
  3. ^ Gannett, Henry (1905). The Origin of Certain Place Names in the United States. Govt. Print. Off. p. 169. 
  4. ^ a b "Population, Housing Units, Area, and Density: 2010 - County".  
  5. ^ a b "Monthly Averages for Vienna, Illinois". The Weather Channel. Retrieved 2011-01-27. 
  6. ^ State website
  7. ^ "Annual Estimates of the Resident Population for Incorporated Places: April 1, 2010 to July 1, 2014". Retrieved June 4, 2015. 
  8. ^ "U.S. Decennial Census". United States Census Bureau. Retrieved July 6, 2014. 
  9. ^ "Historical Census Browser". University of Virginia Library. Retrieved July 6, 2014. 
  10. ^ "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved July 6, 2014. 
  11. ^ "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000" (PDF). United States Census Bureau. Retrieved July 6, 2014. 
  12. ^ a b c "DP-1 Profile of General Population and Housing Characteristics: 2010 Demographic Profile Data".  
  13. ^ "DP02 SELECTED SOCIAL CHARACTERISTICS IN THE UNITED STATES – 2006-2010 American Community Survey 5-Year Estimates".  
  14. ^ "DP03 SELECTED ECONOMIC CHARACTERISTICS – 2006-2010 American Community Survey 5-Year Estimates".  

Further reading

  • P.T. Chapman, A History of Johnson County, Illinois. Herrin, IL: Press of the Herrin News, 1925.

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