Winnebago County, Illinois
Winnebago County is a county in Illinois with an estimated population of 280,922 in 2023. 11 cities, towns and Census places in it are indexed here.
Largest places in Winnebago County
Rockford 146,120Loves Park 23,335Machesney Park 22,630Roscoe 10,843South Beloit 7,893Rockton 7,768Winnebago 2,875Cherry Valley 2,864Pecatonica 2,042Durand 1,371New Milford 790
About Winnebago County
Winnebago County is one of the counties of Illinois. County governments in Illinois handle local services such as courts, property records and elections; cities and towns inside the county run their own municipal services. Population figures come from the Census Bureau's Vintage 2023 estimates, which are updated annually.