Winnebago County, Illinois

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Winnebago County, Illinois
Seal of Winnebago County, Illinois
Seal
Map of Illinois highlighting Winnebago County
Location in the state of Illinois
Map of the United States highlighting Illinois
Illinois's location in the U.S.
FoundedJanuary 16, 1836
Named forWinnebago Tribe
SeatRockford
Largest cityRockford
Area
 • Total519.25 sq mi (1,345 km2)
 • Land513.36 sq mi (1,330 km2)
 • Water5.89 sq mi (15 km2), 1.13%
Population
 • (2010)295,266
 • Density541/sq mi (209/km²)
Congressional districts16th, 17th
Time zoneCentral: UTC-6/-5
Websitewww.wincoil.us
 
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Winnebago County, Illinois
Seal of Winnebago County, Illinois
Seal
Map of Illinois highlighting Winnebago County
Location in the state of Illinois
Map of the United States highlighting Illinois
Illinois's location in the U.S.
FoundedJanuary 16, 1836
Named forWinnebago Tribe
SeatRockford
Largest cityRockford
Area
 • Total519.25 sq mi (1,345 km2)
 • Land513.36 sq mi (1,330 km2)
 • Water5.89 sq mi (15 km2), 1.13%
Population
 • (2010)295,266
 • Density541/sq mi (209/km²)
Congressional districts16th, 17th
Time zoneCentral: UTC-6/-5
Websitewww.wincoil.us

Winnebago County is a county located in the U.S. state of Illinois. According to the 2010 census, it had a population of 295,266, which is an increase of 6.1% from 278,418 in 2000.[1] Its county seat is Rockford.[2]

Winnebago County is part of the Rockford, Illinois, Metropolitan Statistical Area.

Geography[edit]

According to the 2010 census, the county has a total area of 519.25 square miles (1,344.9 km2), of which 513.36 square miles (1,329.6 km2) (or 98.87%) is land and 5.89 square miles (15.3 km2) (or 1.13%) is water.[3]

Major highways[edit]

Adjacent counties[edit]

History[edit]

Winnebago County was formed on January 16, 1836 out of Jo Daviess and LaSalle counties. It was named for the Winnebago Tribe of American Indians.

Demographics[edit]

Historical population
CensusPop.
18404,609
185011,773155.4%
186024,491108.0%
187029,30119.6%
188030,5054.1%
189039,93830.9%
190047,84519.8%
191063,15332.0%
192090,92944.0%
1930117,37329.1%
1940121,1783.2%
1950152,38525.8%
1960209,76537.7%
1970246,62317.6%
1980250,8841.7%
1990252,9130.8%
2000278,41810.1%
2010295,2666.1%
Est. 2012292,069−1.1%
U.S. Decennial Census[4]
2012 Estimate[5]

As of the census of 2000,[6] there were 296,266 people, 111,765 households, and 76,372 families residing in the county. The population density was 542 people per square mile (209/km²). There were 114,404 housing units at an average density of 223 per square mile (86/km²). The racial makeup of the county was 77.51% White, 12.2% Black or African American, 0.4% Native American, 2.5% Asian, 0.04% Pacific Islander, 3.11% from other races, and 2.86% from two or more races. 10.90% of the population were Hispanic or Latino of any race. 20.8% were of German, 9.2% Swedish, 8.9% Irish, 7.3% Italian, 6.6% English and 6.1% American ancestry.

There were 111,765 households out of which 32.90% had children under the age of 18 living with them, 52.30% were married couples living together, 11.80% had a female householder with no husband present, and 31.80% were non-families. 26.30% of all households were made up of individuals and 9.60% 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 3.06.

In the county the population was spread out with 26.40% under the age of 18, 8.40% from 18 to 24, 29.80% from 25 to 44, 22.70% from 45 to 64, and 12.70% who were 65 years of age or older. The median age was 36 years. For every 100 females there were 95.80 males. For every 100 females age 18 and over, there were 92.60 males.

The median income for a household in the county was $43,886, and the median income for a family was $52,456. Males had a median income of $40,289 versus $25,942 for females. The per capita income for the county was $21,194. About 6.90% of families and 9.60% of the population were below the poverty line, including 12.90% of those under age 18 and 6.80% of those age 65 or over.

County government representation[edit]

Winnebago County is comprised by the following districts represented in 2009-2010 by the following individuals listed along with their political affiliation [1]:

District 1

District 2

District 3

District 4

District 5

District 6

District 7

District 8

District 9

District 10

District 11

District 12

District 13

District 14

Townships[edit]

Winnebago County is divided into these townships:

Cities and towns[edit]

Climate and weather[edit]

Rockford, Illinois
Climate chart (explanation)
JFMAMJJASOND
 
 
1.4
 
27
11
 
 
1.3
 
33
16
 
 
2.4
 
46
27
 
 
3.6
 
59
37
 
 
4
 
71
48
 
 
4.8
 
80
58
 
 
4.1
 
83
63
 
 
4.2
 
81
61
 
 
3.5
 
74
52
 
 
2.6
 
62
40
 
 
2.6
 
46
29
 
 
2.1
 
32
17
Average max. and min. temperatures in °F
Precipitation totals in inches
Source: The Weather Channel[7]

In recent years, average temperatures in the county seat of Rockford have ranged from a low of 11 °F (−12 °C) in January to a high of 83 °F (28 °C) in July, although a record low of −27 °F (−33 °C) was recorded in January 1982 and a record high of 112 °F (44 °C) was recorded in July 1936. Average monthly precipitation ranged from 1.34 inches (34 mm) in February to 4.80 inches (122 mm) in June.[7]

See also[edit]

Notes[edit]

  1. ^ "Winnebago County QuickFacts". United States Census Bureau. Retrieved 2011-11-05. 
  2. ^ "Find a County". National Association of Counties. Retrieved 2011-06-07. 
  3. ^ "Census 2010 U.S. Gazetteer Files: Counties". United States Census. Retrieved 2011-11-05. 
  4. ^ "U.S. Decennial Census". Census.gov. Retrieved July 28, 2013. 
  5. ^ "Annual Estimates of the Resident Population: April 1, 2010 to July 1, 2012". Census.gov. Retrieved July 28, 2013. 
  6. ^ "American FactFinder". United States Census Bureau. Retrieved 2008-01-31. 
  7. ^ a b "Monthly Averages for Rockford, Illinois". The Weather Channel. Retrieved 2011-01-27. 

References[edit]

Further reading[edit]

External links[edit]

Coordinates: 42°20′11″N 89°09′39″W / 42.33639°N 89.16083°W / 42.33639; -89.16083