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Mercer County, Illinois

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Mercer County, Illinois
Map of Illinois highlighting Mercer County
Location in the state of Illinois
Map of USA IL
Illinois's location in the U.S.
Founded January 13, 1825
Seat Aledo
Area
 - Total
 - Land
 - Water

568.88 sq mi (1,473 km²)
561.02 sq mi (1,453 km²)
7.86 sq mi (20 km²), 1.38%
PopulationEst.
 - (2008)
 - Density

16,481
31/sq mi (12/km²)
Website www.mercercountyil.org

Mercer County is a county located in the U.S. state of Illinois. As of 2000, the population was 16,957. A 2008 estimate shows a slight decrease to 16,481.[1] Its county seat is Aledo.[2] It is one of the four counties that make up the Davenport-Moline-Rock Island Metropolitan Statistical Area.[3]

HistoryEdit

Mercer County is named for Hugh Mercer (1726–1777), a physician and general during the American Revolution who died from wounds suffered at the Battle of Princeton.

In May 1812, Congress passed an act which set aside lands in Arkansas, Michigan, and Illinois as payment to volunteer soldiers in the War of 1812. Mercer County was part of this "Military Tract."

Seven years after Illinois became a state, Mercer County was founded. It was formed from unorganized territory near Pike County on January 13, 1825. Although the county had been created, its government was not organized for several years; for administration purposes it was attached first to Schuyler County (until 1826), then to Peoria (until 1831), and finally to Warren County. The organization of the county government was finally completed in 1835, after a large influx of settlers following the Black Hawk War.[4]

GeographyEdit

According to the 2000 census, the county has a total area of 568.88 square miles (1,473.4 km2), of which 561.02 square miles (1,453.0 km2) (or 98.62%) is land and 7.86 square miles (20.4 km2) (or 1.38%) is water.[5]

Major highwaysEdit

TownshipsEdit

Abington, Duncan, Eliza, Greene, Keithsburg, Mercer, Millersburg, New Boston, North Henderson, Ohio Grove, Perryton, Preemption, Richland Grove, Rivoli, Suez

Adjacent countiesEdit

DemographicsEdit

Historical populations
Census Pop.
1900 20,945
1910 19,723 −5.8%
1920 18,800 −4.7%
1930 16,641 −11.5%
1940 17,701 6.4%
1950 17,374 −1.8%
1960 17,149 −1.3%
1970 17,294 0.8%
1980 19,286 11.5%
1990 17,290 −10.3%
2000 16,957 −1.9%
2010 16,434 −3.1%
IL Counties 1900-1990

As of the census[6] of 2000, there were 16,957 people, 6,624 households, and 4,915 families residing in the county. The population density was 30 people per square mile (12/km²). There were 7,109 housing units at an average density of 13 per square mile (5/km²). The racial makeup of the county was 98.37% White, 0.29% Black or African American, 0.12% Native American, 0.17% Asian, 0.01% Pacific Islander, 0.35% from other races, and 0.68% from two or more races. 1.27% of the population were Hispanic or Latino of any race. 25.4% were of German, 14.1% American, 13.0% Swedish, 12.3% English and 11.3% Irish ancestry according to Census 2000.

There were 6,624 households out of which 32.10% had children under the age of 18 living with them, 63.5% were married couples living together, 7.2% had a female householder with no husband present, and 25.8% were non-families. 22.8% of all households were made up of individuals and 11.6% had someone living alone who was 65 years of age or older. The average household size was 2.53 and the average family size was 2.96.

In the county the population was spread out with 24.80% under the age of 18, 7.3% from 18 to 24, 26.6% from 25 to 44, 25.4% from 45 to 64, and 15.90% who were 65 years of age or older. The median age was 40 years. For every 100 females there were 96.90 males. For every 100 females age 18 and over, there were 94.20 males.

The median income for a household in the county was $40,893, and the median income for a family was $47,192. Males had a median income of $35,138 versus $22,227 for females. The per capita income for the county was $18,645. 7.8% of the population and 5.8% of families were below the poverty line. 10% of those under the age of 18 and 8.4% of those 65 and older were living below the poverty line.

Cities and towns Edit

TownshipsEdit

Mercer County is divided into fifteen townships:

Climate and weather Edit

Climate chart for Aledo, Illinois
JFMAMJJASOND
 
 
1.27
 
29
11
 
 
1.29
 
35
17
 
 
2.43
 
47
26
 
 
3.69
 
61
37
 
 
3.92
 
72
48
 
 
4.43
 
81
59
 
 
4.21
 
84
62
 
 
4.28
 
82
60
 
 
3.31
 
75
51
 
 
2.73
 
64
40
 
 
2.50
 
47
28
 
 
1.92
 
34
17
temperatures in °Cprecipitation totals in mm
source: The Weather Channel[7]

In recent years, average temperatures in the county seat of Aledo have ranged from a low of 11 °F (−12 °C) in January to a high of 84 °F (29 °C) in July, although a record low of −30 °F (−34.4 °C) was recorded in February 1905 and a record high of 113 °F (45 °C) was recorded in July 1936. Average monthly precipitation ranged from 1.27 inches (32 mm) in January to 4.43 inches (113 mm) in June.[7]

See alsoEdit

ReferencesEdit

Further readingEdit

  • Ives, William C., “Abraham Lincoln in Mercer County, Illinois, 1832, 1834, 1858,” Journal of the Illinois State Historical Society, 101 (Fall–Winter 2008), 329–47.

External linksEdit

Coordinates: 41°12′N 90°44′W / 41.20, -90.74


This page uses content from the English language Wikipedia. The original content was at Mercer County, Illinois. The list of authors can be seen in the page history. As with this Familypedia wiki, the content of Wikipedia is available under the Creative Commons License.

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