Winnebago County is named for the Winnebago Indian tribe.
Surrounding County Courthouses:
N – Green County, Wisconsin and Rock County, Wisconsin
E – Boone County
S – Ogle County
Created: March 3, 1836 
County Seat:
Winnebago 1836 – 1839
Rockford 1839 – present
County Courthouse – Rockford
Location: 400 West State Street / South Church Street
Built: 1967 – 1968
Style: Modern
Architect: Gilbert A Johnson, Kile, Seehausen & Associates Inc.
Contractor: Sjostrom & Sons Inc.
Description: The building faces north and is a nine story brick, glass and concrete structure. The building has a high rectangular tower on the east side and a lower wing on the west side. The north side is faced with white stone. On the southeast is a low two story concrete addition
County Justice Center – Rockford
Location: 650 West State Street / South Winnebago Street
Built: 2003 – 2004
Style: Modern
Architect: The Durant Group
Contractor: SRB Partners
Description: The building faces north and is a two story red and buff colored brick, concrete and glass structure, The building is located at the northeast corner with a six story structure on the west side. The building complex was completed in 2007 and consists of a number of high and low buildings. In the interior are twelve courtrooms. The building houses the County Circuit Court of the 17th Judicial Circuit.
See: The 17th Judicial Circuit includes Boone County.
County Courthouse – Rockford
County Justice Center
Photos taken 2008