How to Search Winnebago County, Illinois Records (Start Here)
Winnebago County, Illinois — Circuit Clerk for court records. Illinois uses township assessors with a county Supervisor of Assessments coordinating. eFileIL for statewide e-filing.
- Circuit Clerk — criminal, civil, traffic, family.
- Property: Township assessors; County Supervisor coordinates. Recorder for documents.
- E-filing: eFileIL (efileil.tylertech.cloud) statewide.
Each source below is verified and links to an official portal.
Criminal & Court Records
Court Records | Circuit Court
Visit →Criminal & Court Records
Official Free
Winnebago County 17th Judicial Circuit Court records, including civil, criminal, and traffic case records.
PACER Federal Courts
Visit →Criminal & Court Records
.gov
Federal court electronic records (Public Access to Court Electronic Records).
pacer.gov
Jail & Inmate Records
Illinois Sex Offender Registry
Visit →Jail & Inmate Records
.gov
Statewide Illinois sex offender registry.
isp.illinois.gov
National Sex Offender Registry
Visit →Jail & Inmate Records
.gov
Dept. of Justice national sex offender public website.
nsopw.gov
Property & Tax Records
Property | Tax Records
Visit →Property & Tax Records
Official Free
Winnebago County Treasurer parcel query for property and tax records.
BLM General Land Office Records
Visit →Property & Tax Records
.gov
U.S. Bureau of Land Management federal land records.
glorecords.blm.gov
Birth/Death/Marriage
FamilySearch US Records
Visit →Birth/Death/Marriage
Free U.S. genealogy and vital records (non-profit).
familysearch.org
Business, Voter & Other
Winnebago County
Visit →Business, Voter & Other
Official Free
Winnebago County, Illinois government agencies, departments, officials, business resources, events, calendars, services, news, and more.
Voters
Visit →Business, Voter & Other
Official Free
Check your voting status or status of your absentee ballot in Winnebago County.
Illinois Corp/LLC Search
Visit →Business, Voter & Other
.gov
Statewide Illinois business entity search.
ilsos.gov
USCIS Business Verification
Visit →Business, Voter & Other
.gov
US Citizenship & Immigration Services.
uscis.gov
Court Records | Circuit Court
Visit →Criminal & Court Records
Official Free
Winnebago County 17th Judicial Circuit Court records, including civil, criminal, and traffic case records.
Property & Tax Records
Property | Tax Records
Visit →Property & Tax Records
Official Free
Winnebago County Treasurer parcel query for property and tax records.
Business, Voter & Other
Winnebago County
Visit →Business, Voter & Other
Official Free
Winnebago County, Illinois government agencies, departments, officials, business resources, events, calendars, services, news, and more.
Frequently Asked Questions
Who handles court records in Winnebago County? ▼
Go to the Circuit Clerk for court records in Winnebago County. Start at the Circuit Clerk's office for case lookups — Illinois has no statewide court search portal.
Who handles property records in Winnebago County? ▼
For deeds, mortgages, and liens, go to the County Recorder. For property values and assessment data, go to the County Assessor (Township Assessor in some counties). For tax bills and payments, go to the County Treasurer.
How do I get birth, death, or marriage records in Winnebago County? ▼
Marriage licenses in Winnebago County are issued by the County Clerk. Birth and death certificates are available from County Clerk (local) / IDPH (state). Divorce records come from the court that granted the decree.
Are Winnebago County records available online? ▼
Winnebago County has partial online coverage — 5 databases are listed on this page, covering court records, property records, and business filings. Other record types may require an in-person visit or written request.
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