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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 U.S. highlighting Illinois
Illinois's location in the U.S.
Founded 1834
Seat Rockford
Area
 - Total
 - Land
 - Water

519.27 sq mi (1,345 km²)
513.74 sq mi (1,331 km²)
5.54 sq mi (14 km²), 1.07%
Population
 - (2020)
 - Density

285,350
541/sq mi (209/km²)
Website www.co.winnebago.il.us

Winnebago County is a county located in the U.S. state of Illinois. As of 2020, the population was 285,350. Its county seat is Rockford, Illinois[1].

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

Geography[]

According to the 2000 census, the county has a total area of 519.27 square miles (1,344.9 km2), of which 513.74 square miles (1,330.6 km2) (or 98.94%) is land and 5.54 square miles (14.3 km2) (or 1.07%) is water.[2]

Major highways[]

  • I-39.svg Interstate 39
  • I-90.svg Interstate 90
  • US 20.svg U.S. Highway 20
  • US 51.svg U.S. Highway 51
  • Illinois 2.svg Illinois Route 2
  • Illinois 75.svg Illinois Route 75
  • Illinois 173.svg Illinois Route 173
  • Illinois 251.svg Illinois Route 251

Adjacent counties[]

History[]

Winnebago County was formed in 1836 out of Jo Daviess and LaSalle Counties. It was named for the Winnebago Tribe of American Indians.

Demographics[]

As of the census[3] of 2000, there were 278,418 people, 107,980 households, and 73,642 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 82.46% White, 10.53% Black or African American, 0.29% Native American, 1.72% Asian, 0.04% Pacific Islander, 3.11% from other races, and 1.86% from two or more races. 6.90% 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 according to Census 2000.

There were 107,980 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.

Politics[]

Prior to 1992, Winnebago County was a Republican Party stronghold in presidential elections, only backing the Democratic Party candidates in the national landslides of 1936 & 1964. Since then, it has become a swing county, backing the national winner in every presidential election from 1980 to 2012. In 2016, Hillary Clinton won the county by only 89 votes over Donald Trump.

United States presidential election results for Winnebago County, Illinois[4]
Year Republican Democratic Third party
No.  % No.  % No.  %
2020 60,861 47.49% 64,056 49.98% 3,243 2.53%
2016 55,624 46.33% 55,713 46.41% 8,718 7.26%
2012 55,138 46.18% 61,732 51.70% 2,527 2.12%
2008 53,886 42.53% 70,034 55.27% 2,784 2.20%
2004 60,782 50.06% 59,740 49.20% 903 0.74%
2000 53,816 49.24% 51,981 47.56% 3,500 3.20%
1996 44,479 44.52% 46,264 46.31% 9,167 9.18%
1992 42,221 37.63% 48,298 43.04% 21,696 19.33%
1988 55,699 54.85% 45,280 44.59% 571 0.56%
1984 64,203 58.66% 44,629 40.78% 619 0.57%
1980 48,825 46.46% 32,384 30.82% 23,880 22.72%
1976 52,736 54.15% 42,399 43.54% 2,252 2.31%
1972 57,682 61.46% 35,937 38.29% 231 0.25%
1968 47,646 52.51% 36,702 40.45% 6,391 7.04%
1964 39,920 44.98% 48,834 55.02% 0 0.00%
1960 49,541 55.20% 40,090 44.67% 110 0.12%
1956 48,332 62.38% 29,063 37.51% 89 0.11%
1952 43,468 57.95% 31,409 41.88% 127 0.17%
1948 29,537 51.54% 27,145 47.36% 631 1.10%
1944 30,837 52.31% 27,831 47.22% 277 0.47%
1940 30,683 51.89% 28,061 47.46% 383 0.65%
1936 24,997 46.30% 27,200 50.38% 1,792 3.32%
1932 26,632 57.12% 17,707 37.98% 2,286 4.90%
1928 33,258 80.39% 7,684 18.57% 430 1.04%
1924 21,978 71.32% 2,228 7.23% 6,608 21.44%
1920 19,913 79.23% 3,355 13.35% 1,866 7.42%
1916 14,893 65.04% 6,198 27.07% 1,806 7.89%
1912 2,537 21.32% 2,276 19.12% 7,089 59.56%
1908 8,919 71.54% 2,163 17.35% 1,385 11.11%
1904 8,143 74.80% 1,177 10.81% 1,567 14.39%
1900 8,103 72.69% 2,498 22.41% 546 4.90%
1896 8,242 75.10% 2,447 22.30% 286 2.61%
1892 5,854 62.50% 2,634 28.12% 878 9.37%



Townships[]

Winnebago County is divided into these townships:

  • Burritt
  • Cherry Valley
  • Durand
  • Harlem
  • Harrison
  • Laona
  • Owen
  • Pecatonica
  • Rockford
  • Rockton
  • Roscoe
  • Seward
  • Shirland
  • Winnebago

Cities and towns[]

  • Argyle
  • Cherry Valley
  • Durand
  • Harrison
  • Lake Summerset
  • Loves Park
  • Seward
  • Shirland
  • South Beloit
  • Winnebago

Climate and weather[]

Climate chart for Rockford, Illinois
JFMAMJJASOND
 
 
1.41
 
27
11
 
 
1.34
 
33
16
 
 
2.39
 
46
27
 
 
3.62
 
59
37
 
 
4.03
 
71
48
 
 
4.80
 
80
58
 
 
4.10
 
83
63
 
 
4.21
 
81
61
 
 
3.47
 
74
52
 
 
2.57
 
62
40
 
 
2.63
 
46
29
 
 
2.06
 
32
17
temperatures in °Cprecipitation totals in mm
source: The Weather Channel[5]

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 (−32.8 °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.[5]

See also[]

  • National Register of Historic Places listings in Winnebago County, Illinois
  • Winnebago County War Memorial

References[]

Further reading[]

External links[]

Coordinates: 42°20′N 89°10′W / 42.33, -89.16


This page uses content from the English language Wikipedia. The original content was at Winnebago 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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