Search For Your Ancestors

Winnebago County, Illinois
Genealogy, History & Facts

Winnebago County, Illinois Facts

When was Winnebago County, IL Created?
Winnebago County was established on January 16, 1836.

What is the County Seat of Winnebago County, IL?
The County Seat is located in Rockford (prior county seats was Winnebago from1836–1839) also, the county government website is

What counties are adjacent to Winnebago County, IL?
Bordering Counties are  Rock County, WI, Boone CountyDeKalb CountyOgle CountyStephenson CountyGreen County, WI

Winnebago County, IL Census Records

What Winnebago County, IL census records are available?
There are many types of census records for Winnebago County guide you in researching your family tree. Federal Population Schedules are available for 18401850186018701880 (free index)1890 (fragment)19001910192019301940.

Winnebago Co. Mortality Schedules can be found for 1850, 1860, 1870 and 1880. Winnebago Co. Industry and Agriculture can be obtained for 1850, 1860, 1870 and 1880. Winnebago Co. Union Veterans Schedules is available for 1890. One can find free online and printable census forms to help you with your research. See Also Illinois Census Records Research Guide

Winnebago County, IL Courthouse and Government Records

Winnebago County Courthouse

What genealogical records can I find in the Winnebago County Courthouse?
Researchers frequently overlook the great importance of Winnebago County court, probate, and land records data as a useful resource of ancestry and genealogy information. Buried away in Illinois courthouses and archives everywhere are the ambitions and frustrations of countless Illinois residents.

The possibilities are excellent that your forefathers have left a comprehensive document of at least a number of facets of their lives in the Winnebago County court records. Even if your forebears is not referred to in a Court case, contemplate all of the other procedures that could have lead to him or her to appear in court records. See Also Illinois Corthouse Records Research Guide.

Winnebago County, IL Societies and Family History Resources

What genealogical and historical societies, archives, museums, associations and libraries are available for Winnebago County, IL?
A list of Winnebago County Historical  and Genealogical Societies, Libraries, Archives. See also list of Statewide Illinois Archives, Historical & Genealogical Societies.

Where can I connect with other Winnebago County, IL Researchers through message boards and forums?

What other genealogical resources are available in Winnebago County, IL?
The following are web links to Genealogy, Records and Resources pertaining to Winnebago County. These genealogy links fall into 3 categories: Commercial Sites, Private Sites or Organization Sites. Some have free access some require a cost. This is simply a collection that has been gathered or submitted. I do not recommend or promote one genealogy site over another.

Winnebago Co. IL Maps, Atlases & Gazetteers

Winnebago Co. IL Books, Newspapers & Publications

Winnebago Co. IL Cemeteries & Church Records

Winnebago Co. IL Family Websites, Pictures & Histories

Winnebago Co. IL General and History Websites

Winnebago Co. IL Military Records