Henry County, Illinois

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Not to be confused with Henry, Illinois.
Henry County, Illinois
Henry County Courthouse (Cambridge, Illinois).jpg
Henry County Courthouse
Map of Illinois highlighting Henry County
Location in the state of Illinois
Map of the United States highlighting Illinois
Illinois's location in the U.S.
Founded January 13, 1825
Named for Patrick Henry
Seat Cambridge
Largest city Kewanee
Area
 • Total 826 sq mi (2,139 km2)
 • Land 823 sq mi (2,132 km2)
 • Water 2.7 sq mi (7 km2), 0.3%
Population
 • (2010) 50,486
 • Density 61/sq mi (24/km²)
Congressional district 17th
Time zone Central: UTC-6/-5
Website www.henrycty.com

Henry County is a county located in the U.S. state of Illinois. According to the 2010 census, it has a population of 50,486.[1] Its county seat is Cambridge.[2]

Henry County is included in the Davenport-Moline-Rock Island, IA-IL Metropolitan Statistical Area.[3]

History[edit]

Henry County was formed on January 13, 1825 out of Fulton County, Illinois. It is named in honor of Patrick Henry,[4] Revolutionary War firebrand and champion of individual rights, to whom the slogan "give me liberty, or give me death" is attributed.

Geography[edit]

According to the U.S. Census Bureau, the county has a total area of 826 square miles (2,140 km2), of which 823 square miles (2,130 km2) is land and 2.7 square miles (7.0 km2) (0.3%) is water.[5] It is the 29th largest of Illinois' 102 counties. The area is fairly flat, with elevations ranging from 650 feet above sea level in the northwest to 850 in the southeast. The land is mostly used for agriculture, about 456,596 acres (1,847.78 km2) or 86.7% of the county's land area. [1].

Climate and weather[edit]

Cambridge, Illinois
Climate chart (explanation)
J F M A M J J A S O N D
 
 
1.5
 
29
13
 
 
1.6
 
35
19
 
 
2.7
 
47
30
 
 
3.7
 
61
40
 
 
4.2
 
73
52
 
 
4.2
 
82
61
 
 
3.9
 
86
66
 
 
4.3
 
83
63
 
 
3.3
 
76
55
 
 
3
 
63
43
 
 
2.8
 
47
31
 
 
2.2
 
33
19
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 Cambridge have ranged from a low of 13 °F (−11 °C) in January to a high of 86 °F (30 °C) in July, although a record low of −24 °F (−31 °C) was recorded in February 1996 and a record high of 103 °F (39 °C) was recorded in July 1983. Average monthly precipitation ranged from 1.52 inches (39 mm) in January to 4.32 inches (110 mm) in August.[6]

Major highways[edit]

Adjacent counties[edit]

Demographics[edit]

2000 census age pyramid for Henry County
Historical population
Census Pop.
1830 41
1840 1,260 2,973.2%
1850 3,807 202.1%
1860 20,660 442.7%
1870 35,506 71.9%
1880 36,597 3.1%
1890 33,338 −8.9%
1900 40,049 20.1%
1910 41,736 4.2%
1920 45,162 8.2%
1930 43,851 −2.9%
1940 43,798 −0.1%
1950 46,492 6.2%
1960 49,317 6.1%
1970 53,217 7.9%
1980 57,968 8.9%
1990 51,159 −11.7%
2000 51,020 −0.3%
2010 50,486 −1.0%
Est. 2013 49,860 −1.2%
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 51,020 people, 20,056 households, and 14,299 families residing in the county. The population density was 62 people per square mile (24/km²). There were 21,270 housing units at an average density of 26 per square mile (10/km²). The racial makeup of the county was 96.19% White, .2% Black or African American, 0.10% Native American, 0.25% Asian, 0.01% Pacific Islander, 1.31% from other races, and 0.99% from two or more races. 2.88% of the population were Hispanic or Latino of any race. 24.6% were of German, 12.4% Swedish, 11.6% American, 9.7% English, 9.0% Irish and 8.2% Belgian ancestry according to Census 2000. 96.7% spoke English and 2.5% Spanish as their first language.

There were 20,056 households out of which 31.80% had children under the age of 18 living with them, 60.00% were married couples living together, 8.00% were single mothers, and 28.70% were non-families. 25.10% of all households were made up of individuals and 13.20% had someone living alone who was 65 years of age or older. The average household size was 2.51 and the average family size was 3.00.

In the county the population was spread out with 25.30% under the age of 18, 7.70% from 18 to 24, 26.40% from 25 to 44, 24.30% from 45 to 64, and 16.30% who were 65 years of age or older. The median age was 39 years. For every 100 females there were 96.10 males. For every 100 females age 18 and over, there were 92.50 males.

The median income for a household in the county was $39,854, and the median income for a family was $48,413. Males had a median income of $34,436 versus $21,757 for females. The per capita income for the county was $18,716. About 5.60% of families and 8.00% of the population were below the poverty line, including 10.50% of those under age 18 and 6.60% of those age 65 or over.

Communities[edit]

Cities[edit]

Towns[edit]

Villages[edit]

Census-designated places[edit]

Townships[edit]

Henry County is divided into twenty-four townships:

See also[edit]

References[edit]

  1. ^ a b "State & County QuickFacts". United States Census Bureau. Retrieved July 5, 2014. 
  2. ^ "Find a County". National Association of Counties. Retrieved 2011-06-07. 
  3. ^ United States Office of Management and Budget. "Update of Statistical Area Definitions and Guidance on Their Uses" (PDF). pp. 5, 36. Archived from the original on 2006-05-14. Retrieved 2006-07-21. 
  4. ^ Gannett, Henry (1905). The Origin of Certain Place Names in the United States. Govt. Print. Off. p. 155. 
  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 Cambridge, Illinois". The Weather Channel. Retrieved 2011-01-27. 
  7. ^ "U.S. Decennial Census". United States Census Bureau. Retrieved July 5, 2014. 
  8. ^ "Historical Census Browser". University of Virginia Library. Retrieved July 5, 2014. 
  9. ^ "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved July 5, 2014. 
  10. ^ "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000". United States Census Bureau. Retrieved July 5, 2014. 
  11. ^ "American FactFinder". United States Census Bureau. Retrieved 2008-01-31. 

External links[edit]

Coordinates: 41°21′11″N 90°07′53″W / 41.35306°N 90.13139°W / 41.35306; -90.13139