Public Records Indexing in Illinois: A Guide for County Recorders of Deeds

Quick Reference

Who Manages Land Records in Illinois

Illinois has 102 counties. In 101 of them, land records are managed by an elected County Recorder of Deeds — an independent constitutional office responsible for receiving, indexing, and preserving instruments affecting real property within the county.

Cook County is the exception. Voters approved a ballot measure in November 2016 (by 64%) to consolidate the Recorder of Deeds into the Cook County Clerk's office. The merger took effect on December 7, 2020. Since that date, all recording functions for Cook County — including Chicago — are handled by the Cook County Clerk. The intent was to eliminate duplicative administrative overhead between two countywide elected offices.

Operationally, the merger changed the office name and administrative structure, not the underlying recording requirements. Documents are still indexed under grantor/grantee, recorded in sequence, and subject to the same statutory requirements under 765 ILCS 5.

Governing Statutes and Indexing Implications

Common Instrument Types in Illinois

Race-Notice Recording and Why Indexing Accuracy Matters

Illinois is a race-notice state under 765 ILCS 5/30. This means a subsequent purchaser or lender is protected against a prior unrecorded interest only if they satisfy two conditions simultaneously: (1) they recorded their instrument first, and (2) they took without actual notice of the prior interest at the time of their transaction.

This is distinct from a pure "notice" state (where only lack of notice matters, not who recorded first) and a pure "race" state (where only recording order matters, regardless of notice). Illinois requires both.

The practical consequence for indexing: recording date, recording time, and the precise spelling of grantor and grantee names are legally material. A title searcher relying on a grantor-grantee index to establish a chain of title depends on those entries being accurate. An indexing error that misfiled a deed under the wrong grantor name could cause a subsequent searcher to miss the instrument entirely — potentially affecting which party has priority under Illinois law.

This is a stronger argument for indexing accuracy in race-notice states than in notice-only states, where recording order is not determinative of priority.

The Cook County Merger — What Changed for Records

Prior to December 7, 2020, Cook County had two separate countywide elected offices: the Recorder of Deeds (land records) and the County Clerk (elections, vital records, tax redemptions). The 2016 ballot measure merged both functions into a single Cook County Clerk office.

Historical records previously held by the Recorder of Deeds were transferred to the Cook County Clerk. There was no gap in public access — the same instruments remain searchable and the recording system continued operating under the merged office. The recording book and instrument numbering sequences were preserved through the transition.

For backfile and digitization work involving Cook County records, researchers and vendors should note that records pre-December 2020 were created under the Recorder of Deeds branding, while post-merger records reflect the County Clerk office. Both sets are maintained at the same location and accessible through the same portal.

Digitization Funding Resources for Illinois Counties

The Illinois Digital Archives (idaillinois.org), maintained by the Illinois State Library, provides a discovery layer for digitized collections from libraries, archives, and government offices statewide.

Practical Backfile Considerations

• Cook County historical records:Records created before December 7, 2020 were generated under the Recorder of Deeds office. Post-merger, the Cook County Clerk holds and maintains all records. Any backfile project covering Cook County spans two administrative entities, though the physical and digital holdings are unified.
• Race-notice timestamp precision:Because recording date and time affect legal priority under 765 ILCS 5/30, accurate indexing of recording timestamps is more consequential in Illinois than in notice-only states. Backfile QC workflows should treat date-of-recording as a high-priority field.
• 102-county scale:Digitization maturity varies significantly across Illinois's 102 counties. Larger counties (Cook, DuPage, Lake, Sangamon) generally have more advanced digital systems; smaller rural counties may still maintain older microfilm-based or paper indexes for historical records.
• E-recording adoption:765 ILCS 33 enables e-recording statewide, but implementation is voluntary and county-by-county. PRIA-standard metadata fields (2.4.1 / 2.4.2) govern electronic submissions where e-recording is active.