Winnebago County, Illinois
Winnebago is a county in Illinois. It was formed in 1836 (1836) from the following county/ies: Jo Daviess/unorganized (LaSalle). Winnebago began keeping birth records in 1877, marriage records in 1836, and death records in 1877. It began keeping land records in 1836, probate records in 1837, and court records in 1836. For more information, contact the county at 404 Elm St., Rockford 61101. On the attached map, Winnebago is located at A5.
For information about the state of Illinois see Illinois Family History Research.