LandBrief

Lake County

Parcel & Property Data

278,705Total Parcels
—Avg. Market Value
492,281Total Acres (measured from parcel boundaries)

About This Data

LandBrief holds 278,705 parcel records for Lake County, sourced from county records. Each includes the parcel boundary, and — where the county publishes them — owner, situs address, acreage, assessed values and legal description.

Data from the Lake County assessor roll dated July 2025, loaded August 2026. See data sources for every county’s vintage.

Explore Lake County

Lake County by the Numbers

Median parcel size
0.25 acres
measured from mapped boundaries
90th-percentile parcel
3 acres
County land area
283,955 acres
U.S. Census measurement
Communities
70
2.0% of parcels outside any incorporated place
Out-of-state owners
2.6% of parcels
by owner mailing address

Who Owns Lake County?

Share of the county’s 278,705 parcels by the kind of owner on record. Classified from owner names, so the boundaries are approximate; an entity the rules cannot place counts as an individual.

Owner typeShare of parcels
Individuals79.5%
Companies & organizations8.6%
Trusts & estates8.8%
Government2.7%
Other / unclassified0.4%

The largest owner on record is LAKE COUNTY FOREST PRESERVE DISTRICT with 1,790 parcels — see the full landowner leaderboard.

Parcel Records (~278,705 total)

per page
Parcel IDOwnerAddressCityAcreage
0209200011MILLER BOYZ LLCE DEPOT STAntioch13.72 †
0209200024BOARD OF EDUCATION DISTRICT 34E DEPOT STAntioch9.02 †
0209308008STEWART MARK A130 E DEPOT STAntioch0.77 †
0209308005PERSIO RONALD & PERSIO BETH DI140 E DEPOT STAntioch0.51 †
0208400002ZIMMERMAN RONALD J150 E DEPOT STAntioch0.97 †
0208400017SCRIBNER JAMES L152 E DEPOT STAntioch7.02 †
0209308006COLLETTI STEVEN & COLLETTI AMANDA160 E DEPOT STAntioch0.61 †
0209308004MARIANI JOSEPH & STRICKLER SUSAN190 E DEPOT STAntioch1.19 †
0209400020BIGGS PATRICIA420 E DEPOT STAntioch1.35 †
0209200021BOARD OF EDUCATION DISTRICT 34433 E DEPOT STAntioch10.99 †
Page 1 of 27871

Download Lake County parcel data

All 278,705 parcels in Lake County as a single file — free, no account needed. Shapefile, GeoJSON, GeoPackage, CSV and Parquet.

Get Lake County on FreeParcelData →

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Frequently Asked Questions

How many parcels are in Lake County?

The Lake County assessor roll on file records 278,705 parcels across 70 communities, with 2.0% lying outside any incorporated place.

Who owns the most land in Lake County?

LAKE COUNTY FOREST PRESERVE DISTRICT holds 1,790 parcels, the most of any owner on record — the largest-landowners leaderboard ranks the top 25.

What is the typical parcel size in Lake County?

Measured from mapped boundaries, the median parcel is 0.25 acres, and nine parcels in ten are under 3 acres. Boundary-measured area closely tracks deeded acreage but is not the deed.

How much of Lake County is owned from out of state?

2.6% of parcels list an owner mailing address outside IL, per the county’s own records.

How much of Lake County is government-owned?

Government entities — federal, state, and local — hold 2.7% of the county’s parcels, classified from owner names on the roll.

How current is this data?

It comes from the Lake County assessor roll dated July 2025. Counties deliver on their own schedules; the methodology page explains how records are processed and the data sources page tracks every county’s vintage.

Browse by City (70)

278,705 parcels across 70 communities in Lake County.