Researching ancestors from Winnebago County, Illinois? Here's where the records are — the free path first, then how to get the whole family history traced and written.
Winnebago County's seat is Rockford. Look up your surname among the deceased residents of Illinois in our public-record database.
Search Illinois records →Where Winnebago County records are kept
Original Winnebago County vital, probate, and land records are held at the county courthouse in Rockford — the county recorder or clerk's office. Statewide death registration in Illinois began around 1916 (counties recorded deaths earlier), so for earlier Winnebago County deaths you'll rely on the county courthouse, church registers, and cemetery transcriptions. The Illinois State Archives in Springfield holds the broader historical and microfilmed county records.
The free records for Winnebago County
- Census — every federal census through 1950 is free and places your family in Winnebago County by household every ten years.
- Death records — search our Illinois database and the state death index for the death year and place.
- Obituaries — the Library of Congress's Chronicling America has free Illinois newspapers, including Rockford-area papers.
- Cemeteries — Winnebago County cemetery and tombstone transcriptions, many public domain, fill gaps where a certificate doesn't exist.
We trace both sides back to the documented wall and deliver a written book + interactive family site — flat rate, no DNA test.
See how it works →Frequently asked questions
How do I find genealogy records in Winnebago County, Illinois?
Start with the free federal census (public through 1950) and our free Illinois database, then check the county courthouse in Rockford for vital, probate, and land records, plus obituaries and cemetery transcriptions.
Where is the Winnebago County, Illinois courthouse?
The Winnebago County seat is Rockford, where the county recorder or clerk holds original vital, probate, and land records.