Knox County, Illinois: parcel data and property records
32,965 Knox County parcels on one searchable map: owner of record and mailing address and recorded sales, plus lot boundaries and location. Screen by absentee ownership, acreage and owner tenure.
What the data covers
These bars show real field-by-field coverage for Knox County in our database, so you know exactly what you are getting before you search. Numbers refresh as the county publishes new records.
Not held for Knox County: assessed values, year built, land or improvement value, land use or property class, deeded acreage, zoning and vacancy. Those fields are carried where the county publishes them.
Most recent recorded sale on file: 2026-09-23.
Search Knox County parcels
The map is free to browse - parcel lines, boundaries, and location. Owner of record, recorded sales and the full parcel report come with a plan that costs less than one hour of a title runner's time.
Explore the Knox County map See plans
Common questions
How many parcels are in Knox County, Illinois?
JB PARCEL carries 32,965 parcel records for Knox County, Illinois, with owner information on 97 percent of them.
Can I find out who owns a property in Knox County?
Yes. Search by owner name, address, or parcel number to pull the record: owner of record and mailing address, recorded sales and lot lines on the map. Sale records here currently run through 2026-09-23.
How do I find vacant land or absentee owners in Knox County?
We do not hold vacancy data for Knox County yet, so this filter has nothing to match there. Vacancy filters work in the counties where we hold the field. Knox County does have owner mailing state: 1,633 parcels have an owner mailing address outside Illinois.
Can I search Knox County by lot size or acreage?
Yes. Acreage is on 100 percent of Knox County parcels, mapped from the parcel boundary, and the advanced search filters on it directly - set a minimum and maximum to pull every tract in that range, then stack vacancy or absentee ownership on top.