Winnebago is a village in Winnebago County, Illinois. It is part of the Rockford-Winnebago Metropolitan Statistical Area. The population was 3,101 at the 2010 census, up from 2,958 in 2000. James Weber Linn (1876–1939), educator and politician, was born in Winnebago.Winnebago is located at 42°15′56″N 89°14′26″W (42.265652, -89.240548). According to the 2010 census, Winnebago has a total area of 1.95 square miles (5.05 km2), all land.
As of the census of 2000, there were 3,000 people, 1,009 households, and 841 families residing in the village. The population density was 1,500 people per square mile (821.6/km2). There were 1,023 housing units at an average density of 735.0 per square mile (284.2/km2). The racial makeup of the village was 98.14% White, 1.12% African American, 0.03% Native American, 0.30% Asian, and 0.41% from two or more races. Hispanic or Latino of any race were 1.18% of the population.
There were 1,009 households, out of which 50.3% had children under the age of 18 living with them, 69.9% were married couples living together, 10.7% had a female householder with no husband present, and 16.6% were non-families. 14.1% of all households were made up of individuals, and 7.2% had someone living alone who was 65 years of age or older. The average household size was 2.93 and the average family size was 3.24.
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