Winnebago County

Winnebago County is an administrative division in northern Illinois with Rockford as its largest city and county seat. The area combines farmland, towns, and urban spaces that form the economic and social fabric of the region.

The county was established in 1836 and named after the Winnebago people who inhabited the region before European settlement. This founding marks when European American expansion transformed the landscape and society of the area.

The early settlers from New England and New York left their mark on how the county looks and feels, with architectural styles and customs still visible in its towns today.

The county administration office in Rockford is the main hub for official matters like property taxes and voter registration. It helps to know in advance what specific services you need when planning a visit.

Lincoln won far more votes than his rival Douglas in the 1860 presidential race here, revealing that the region was strongly opposed to slavery at that time.

Location: Illinois

Inception: January 16, 1836

Capital city: Rockford

Shares border with: Rock County, DeKalb County, Ogle County, Green County, Boone County, Stephenson County

Website: http://wincoil.us

GPS coordinates: 42.33000,-89.16000

Latest update: December 20, 2025 11:57