ParcelioBoone County, Illinois: parcel data and property records
24,307 Boone 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 and owner tenure.
What the data covers
These bars show real field-by-field coverage for Boone 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 Boone County: year built, zoning and vacancy. Those fields are carried where the county publishes them.
Most recent recorded sale on file: 2026-10-30.
Areas covered
Parcel counts by place, largest first: Belvidere (11,217), Poplar Grove (4,840), Capron (836), Caledonia (816), Loves Park (549).
Recent sales
878 Boone County parcels have a recorded sale dated since November 2025. Across 762 priced sales, with a deed recorded on several parcels counted once, the median price was $274,900 and the middle half sold between $200,000 and $380,000.
Land use mix
The most common land use or property class on file, as the county writes it, by share of parcels with one: Complete tear off/re roof 54%, Complete tear off/re roof & siding replacement 4%, Tear off / re roof 4%, Complete tear off and reroof 3%, Complete tear off/re roof house & garage 3%.
Nearest counties
- Winnebago County: about 17 mi away, 124,749 parcels
- McHenry County: about 19 mi away, 150,085 parcels
- DeKalb County: about 30 mi away, 43,135 parcels
- Ogle County: about 32 mi away, 6,898 parcels
- Kane County: about 34 mi away, 189,259 parcels
Search Boone County parcels
The map is free to browse - parcel lines, boundaries, and location. Owner of record, assessed values, 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 Boone County map See plans
Common questions
How many parcels are in Boone County, Illinois?
Parcelio carries 24,307 parcel records for Boone County, Illinois, with owner information on 99 percent of them.
Can I find out who owns a property in Boone County?
Yes. Search by owner name, address, or parcel number to pull the record: owner of record and mailing address, assessed values, recorded sales and lot lines on the map. Sale records here currently run through 2026-10-30.
How do I find vacant land or absentee owners in Boone County?
We do not hold vacancy data for Boone County yet, so this filter has nothing to match there. Vacancy filters work in the counties where we hold the field. Boone County does have owner mailing state: 1,031 parcels have an owner mailing address outside Illinois.
Can I search Boone County by lot size or acreage?
Yes. Acreage is on 99 percent of Boone 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.