Lake County, Illinois: parcel data and property records
278,978 Lake County parcels on one searchable map: owner of record and mailing address, assessed and appraised values and recorded sales, plus lot boundaries and location. Screen by absentee ownership, acreage, year built and owner tenure.
What the data covers
These bars show real field-by-field coverage for Lake 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 Lake County: land or improvement value and vacancy. Those fields are carried where the county publishes them.
Most recent recorded sale on file: 2026-10-09.
Areas covered
Parcel counts by place, largest first: Waukegan (24,711), Antioch (15,355), Mundelein (14,641), Gurnee (14,621), Grayslake (13,035).
Recent sales
11,897 Lake County parcels have a recorded sale dated since November 2025. Across 7,868 priced sales, with a deed recorded on several parcels counted once, the median price was $405,000 and the middle half sold between $275,000 and $675,000.
Land use mix
The most common land use or property class on file, as the county writes it, by share of parcels with one: 40-Residential Improvements 78%, 30-Residential Vacant Land/Lots 6%, 90-Exempt 4%, 60-Commercial Improvements 3%, 30-Residential Vacant land/lots 2%.
Nearest counties
- McHenry County: about 24 mi away, 150,085 parcels
- DuPage County: about 34 mi away, 337,341 parcels
- Kane County: about 35 mi away, 189,259 parcels
- Cook County: about 36 mi away, 1,872,370 parcels
- Boone County: about 43 mi away, 24,307 parcels
Search Lake County parcels
The map is free to browse - parcel lines, boundaries, and location. Owner of record, assessed values, recorded sales, year built and the full parcel report come with a plan that costs less than one hour of a title runner's time.
Explore the Lake County map See plans
Common questions
How many parcels are in Lake County, Illinois?
Parcelio carries 278,978 parcel records for Lake County, Illinois, with owner information on 99 percent of them.
Can I find out who owns a property in Lake County?
Yes. Search by owner name, address, or parcel number to pull the record: owner of record and mailing address, assessed values, recorded sales, year built and lot lines on the map. Sale records here currently run through 2026-10-09.
How do I find vacant land or absentee owners in Lake County?
We do not hold vacancy data for Lake County yet, so this filter has nothing to match there. Vacancy filters work in the counties where we hold the field. Lake County does have owner mailing state: 1,319 parcels have an owner mailing address outside Illinois.
Can I search Lake County by lot size or acreage?
Yes. Acreage is on 99 percent of Lake 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.