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 sq mi (1,344 km2)
 • Land513 sq mi (1,329 km2)
 • Water5.9 sq mi (15 km2), 1.1%
Population
 • (2010)295,266
 • Density575/sq mi (222/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 sq mi (1,344 km2)
 • Land513 sq mi (1,329 km2)
 • Water5.9 sq mi (15 km2), 1.1%
Population
 • (2010)295,266
 • Density575/sq mi (222/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.[1] Its county seat is Rockford.[2]

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

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.

Geography[edit]

According to the U.S. Census Bureau, the county has a total area of 519 square miles (1,340 km2), of which 513 square miles (1,330 km2) is land and 5.9 square miles (15 km2) (1.1%) is water.[3]

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[4]

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.[4]

Major highways[edit]

Adjacent counties[edit]

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. 2013290,666−1.6%
U.S. Decennial Census[5]
1790-1960[6] 1900-1990[7]
1990-2000[8] 2010-2013[1]

As of the census of 2000,[9] 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.

Government[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

Communities[edit]

Cities[edit]

Villages[edit]

Census-designated place[edit]

Unincorporated communities[edit]

Townships[edit]

Winnebago County is divided into these townships:

See also[edit]

Notes[edit]

  1. ^ a b "State & County QuickFacts". United States Census Bureau. Retrieved July 9, 2014. 
  2. ^ "Find a County". National Association of Counties. Retrieved 2011-06-07. 
  3. ^ "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. 2011-02-12. Retrieved 2011-04-23. 
  4. ^ a b "Monthly Averages for Rockford, Illinois". The Weather Channel. Retrieved 2011-01-27. 
  5. ^ "U.S. Decennial Census". United States Census Bureau. Retrieved July 9, 2014. 
  6. ^ "Historical Census Browser". University of Virginia Library. Retrieved July 9, 2014. 
  7. ^ "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved July 9, 2014. 
  8. ^ "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000". United States Census Bureau. Retrieved July 9, 2014. 
  9. ^ "American FactFinder". United States Census Bureau. Retrieved 2008-01-31. 

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