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Winnebago County, Illinois
Genealogy, History & Facts

Winnebago County, Illinois Facts

Winnebago County

When was Winnebago County, IL Created?
Winnebago County was established on January 16, 1836 from unorganized land and JoDaviess County. This county was named for the Winnebago Native Americans .

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 (north), Boone County (east), DeKalb County (southeast), Ogle County (south), Stephenson County (west), Green County, WI (northwest)

What cities and towns are in Winnebago County, IL?
Cities and towns located in the County include  Argyle, Cherry Valley, Durand, Harrison, Lake Summerset, Loves Park, Machesney Park, New Millford, Pecatonica, Rockford, Rockton, Roscoe, Seward, Shirland, South Beloit, Winnebago.

What Townships are in Winnebago County, IL?
Townships located in the County include Laona, Harlem, Harrison, Burritt, Cherry Valley, Durand, Pecatonica, Owen, Seward, Shirland, Rockford, Rockton, Roscoe, Winnebago.

Winnebago County, IL Vital Records

Where can find Winnebago County Birth, marriage, Divorce and Death Records?
Winnebago County vital records can be found at the Illinois Department of Public Health has copies of birth, marriage, divorce and death records. There is a fee for each copy requested. Please refer to the information to the Statewide Vital Records in Illinois for current fees and application process.

You can search online for Winnebago County Birth, Marriage, Divorce or Death Records. You can also Order Electronically Online or can download an application for Illinois Birth CertificateMarriage CertificateDivorce CertificateDeath Certificate Applications to mail.

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 1840, 1850, 1860, 1870, 1880 (free index), 1890 (fragment), 1900, 1910, 1920, 1930, 1940.

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?
The below facts shows exactly what death, marriage, birth, property, wills, and court records are typically in Winnebago County. The years listed below are the first noted records with this county. See Also Illinois Corthouse Records Research Guide.

  • Winnebago County Courthouse (all departments listed below are located here, unless otherwise noted)
    • Address: 400 W. State St., Rockford, IL 61101
  • Winnebago County Clerk maintains records and issues certificates of vital statistics (birth certificates, death certificates, and marriage certificates) for the entire County.
    • Address: 404 Elm St., Rockford, IL 61101
    • Phone: 815-987-3050
    • Marriage Records: 1836
    • Birth & Death Records: 1877
  • Winnebago County Recorder of Deeds serves the people of County by receiving, filing and maintaining all records related to real property in our county. These documents range from all types of conveyance deeds, mortgages, releases and assignments, property liens, as well as, assorted federal, state and local liens. The Recorder’s office is responsible for the recordation and storage of plats of subdivision, land surveys and monument records. Many other types of miscellaneous documents are recorded, such as; foreign birth certificates, foreign marriage licenses, and military discharge paperwork to name a few.
    • Address: 404 Elm St., Rockford, IL 61101
    • Phone: 815-987-3100
    • Land Records: 1836
  • Winnebago County Clerk of the Circuit Court, commonly known as the Circuit Clerk, is the keeper of the files and records of the Circuit Court. The Circuit Clerk's Office retains documents some of which include criminal law, chancery, support, probate, adoption, ect....
    • Phone: 815-987-2510
    • Probate Records: 1837
    • Court Records: 1836
  • Winnebago County Treasurer's Office is responsible for the statutory duties required as County Treasurer and as Ex-Officio County Collector of Real Estate Property Taxes and Drainage District Taxes for the entire county.
  • The county archives of the state of Illinois
  • Local Government Records Database - provides a listing of the local governmental records held by the Illinois Regional Archives Depository (IRAD) system
  • BLM Land Records

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

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