DeKalb County, Illinois

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DeKalb County, Illinois
Sycamore Dek cty gov leg center.jpg
DeKalb County's Legislative Center
Seal of DeKalb County, Illinois
Seal
Map of Illinois highlighting DeKalb County
Location in the state of Illinois
Map of the United States highlighting Illinois
Illinois's location in the U.S.
Founded March 4, 1837
Named for Johann de Kalb
Seat Sycamore
Largest city DeKalb
Area
 • Total 634.66 sq mi (1,644 km2)
 • Land 631.31 sq mi (1,635 km2)
 • Water 3.35 sq mi (9 km2), 0.53%
Population
 • (2010) 105,160
 • Density 140/sq mi (54/km²)
Congressional districts 14th, 16th
Time zone Central: UTC-6/-5
Website www.dekalbcounty.org

DeKalb County is a county located in the U.S. state of Illinois. According to the 2010 census, it had a population of 105,160, which is an increase of 18.2% from 88,969 in 2000.[1] Its county seat is Sycamore.[2]

DeKalb County is part of the Chicago metropolitan statistical area.[3]

History[edit]

DeKalb County was formed on March 4, 1837,[4] out of Kane County, Illinois. The County was named in honor of Johann de Kalb,[5] a German (Bavarian) hero of the American Revolutionary War. DeKalb County is approximately 632.7 square miles, located 63 miles west of Chicago. There are 19 townships in the county with the county seat at Sycamore.

Between 1834 and 1837, early white men began to settle in DeKalb County along the streams and wooded areas because of the fertile soil, wild game, and food and water opportunities. Major growth stemmed from the introduction of the railroad which brought easier methods of transportation and opportunities for industrial growth. Some of the notable industries based in DeKalb County were: Sandwich Manufacturing Company, Marsh Harvester Company, Barbed Wire, Gurler Brothers Pure Milk and many more.

The county has always been noted for agriculture. In 1852, the first Agricultural Fair was held in Sycamore, under the supervision of the DeKalb Agricultural Society. Eventually farmers, businessmen, bankers and newspapermen organized to become the DeKalb County Soil Improvement Association. In later years the DeKalb County Soil Improvement Association would split into two and become DeKalb County Farm Bureau and DeKalb Agricultural Association (DEKALB AgResearch, Inc., Monsanto). DeKalb County is credited with being the birthplace of the Farm Bureau movement.

Education has played an important role in the area with Northern Illinois University located in DeKalb and Kishwaukee Community College located in Malta. A major fair has been held each year since 1887 at the Sandwich Fairgrounds in Sandwich.

Pronunciation[edit]

Unlike similarly spelled locations, such as DeKalb County, Georgia, DeKalb denizens from Illinois pronounce the county name /dɨˈkælb/ di-KALB, with an L sound, as opposed to a silent "L."

Geography[edit]

According to the 2010 census, the county has a total area of 634.66 square miles (1,643.8 km2), of which 631.31 square miles (1,635.1 km2) (or 99.47%) is land and 3.35 square miles (8.7 km2) (or 0.53%) is water.[6]

Adjacent counties[edit]

Major highways[edit]

Townships[edit]

DeKalb County is divided into nineteen townships:

Cities and towns[edit]

Political districts[edit]

  • Note: Illinois was redistricted in 2011 as a result of the loss of a Congressional seat (IL went from holding 19 to 18). Prior to redistricting DeKalb was represented by House Districts: 69 and 70; Senate District: 35; and Congressional District: 14

Demographics[edit]

Historical population
Census Pop.
1840 1,697
1850 7,540 344.3%
1860 19,086 153.1%
1870 23,265 21.9%
1880 26,768 15.1%
1890 27,066 1.1%
1900 31,756 17.3%
1910 33,457 5.4%
1920 31,339 −6.3%
1930 32,644 4.2%
1940 34,388 5.3%
1950 40,781 18.6%
1960 51,714 26.8%
1970 71,654 38.6%
1980 74,624 4.1%
1990 77,932 4.4%
2000 88,969 14.2%
2010 105,160 18.2%
Est. 2012 104,704 −0.4%
U.S. Decennial Census[7]
2012 Estimate[8]
2000 census age pyramid for DeKalb County

As of the census[9] of 2000, there were 88,969 people, 31,674 households, and 19,954 families residing in the county. The population density was 140 people per square mile (54/km²). There were 32,988 housing units at an average density of 52 per square mile (20/km²). The racial makeup of the county was 88.46% White, 4.59% Black or African American, 0.22% Native American, 2.35% Asian, 0.07% Pacific Islander, 2.74% from other races, and 1.57% from two or more races. 6.55% of the population were Hispanic or Latino of any race. 25.6% were of German, 10.8% Irish, 7.2% English, 5.9% American and 5.0% Norwegian ancestry according to Census 2000. 90.8% spoke English and 5.7% Spanish as their first language.

There were 31,674 households out of which 32.50% had children under the age of 18 living with them, 50.90% were married couples living together, 8.50% had a female householder with no husband present, and 37.00% were non-families. 25.50% of all households were made up of individuals and 7.90% had someone living alone who was 65 years of age or older. The average household size was 2.56 and the average family size was 3.11.

In the county the population was spread out with 23.10% under the age of 18, 22.00% from 18 to 24, 27.60% from 25 to 44, 17.40% from 45 to 64, and 9.80% who were 65 years of age or older. The median age was 28 years. For every 100 females there were 98.20 males. For every 100 females age 18 and over, there were 96.50 males.

The median income for a household in the county was $45,828, and the median income for a family was $58,194. Males had a median income of $41,111 versus $26,690 for females. The per capita income for the county was $19,462. About 5.10% of families and 11.40% of the population were below the poverty line, including 7.10% of those under age 18 and 4.50% of those age 65 or over.

Climate and weather[edit]

Sycamore, Illinois
Climate chart (explanation)
J F M A M J J A S O N D
 
 
1.5
 
27
10
 
 
1.4
 
32
16
 
 
2.5
 
44
26
 
 
3.5
 
58
37
 
 
4.2
 
70
48
 
 
4.5
 
80
58
 
 
4.2
 
84
63
 
 
4.5
 
81
61
 
 
3.5
 
74
51
 
 
2.6
 
62
40
 
 
2.8
 
45
28
 
 
2.1
 
32
17
Average max. and min. temperatures in °F
Precipitation totals in inches
Source: The Weather Channel[10]

In recent years, average temperatures in the county seat of Sycamore have ranged from a low of 10 °F (−12 °C) in January to a high of 84 °F (29 °C) in July, although a record low of −27 °F (−33 °C) was recorded in January 1985 and a record high of 103 °F (39 °C) was recorded in August 1988. Average monthly precipitation ranged from 1.40 inches (36 mm) in February to 4.49 inches (114 mm) in June.[10]

See also[edit]

Notes[edit]

  1. ^ "DeKalb County QuickFacts". United States Census Bureau. Retrieved 2011-11-05. 
  2. ^ "Find a County". National Association of Counties. Retrieved 2011-06-07. 
  3. ^ "DeKalb County, Illinois". Retrieved 26 June 2012. 
  4. ^ Illinois Regional Archives Depository System. "Name Index to Illinois Local Governments". Illinois State Archives. Illinois Secretary of State. Retrieved 30 August 2013. 
  5. ^ Gannett, Henry (1905). The Origin of Certain Place Names in the United States. Govt. Print. Off. p. 103. 
  6. ^ "Census 2010 U.S. Gazetteer Files: Counties". United States Census. Retrieved 2011-11-05. 
  7. ^ "U.S. Decennial Census". Census.gov. Retrieved July 27, 2013. 
  8. ^ "Annual Estimates of the Resident Population: April 1, 2010 to July 1, 2012". Census.gov. Retrieved July 27, 2013. 
  9. ^ "American FactFinder". United States Census Bureau. Retrieved 2008-01-31. 
  10. ^ a b "Monthly Averages for Sycamore, Illinois". The Weather Channel. Retrieved 2011-01-27. 

References[edit]

Further reading[edit]

External links[edit]

Coordinates: 41°53′37″N 88°46′13″W / 41.89361°N 88.77028°W / 41.89361; -88.77028