McHenry County

Parcel & Property Data

149,628Total Parcels

—Avg. Market Value

385,631Total Acres (measured from parcel boundaries)

About This Data

LandBrief holds 149,628 parcel records for McHenry 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 McHenry County assessor roll dated July 2025, loaded August 2026. See data sources for every county’s vintage.

Explore McHenry County

McHenry County by the Numbers

Median parcel size: 0.28 acres
measured from mapped boundaries
90th-percentile parcel: 4.4 acres
County land area: 386,174 acres
U.S. Census measurement
Communities: 51
8.0% of parcels outside any incorporated place
Out-of-state owners: 2.9% of parcels
by owner mailing address

Who Owns McHenry County?

Share of the county’s 149,628 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 type	Share of parcels
Individuals	83.8%
Companies & organizations	11.0%
Trusts & estates	4.7%
Government	0.2%
Other / unclassified	0.2%

The largest owner on record is MCHENRY CO CONSERV DIST with 1,360 parcels — see the full landowner leaderboard.

Parcel Records (~149,628 total)

Showper page

Parcel ID	Owner	Address	City	Acreage
02-31-300-002	GOLDA FARMS LLC	19820 E BRINK ST	Harvard	39.16 †
02-31-300-001	CHANG FAM LLC	20012 E BRINK ST	Harvard	39.21 †
02-21-476-006	EARL R PAMELA M NOVAK	17135 E IL RT 173	Unincorporated	1.84 †
02-30-451-003	VANICK JOHN	19419 E IL RT 173	Unincorporated	10.04 †
02-31-100-004	DAVID J SHELIA M PERRY	19808 E IL RT 173	Unincorporated	0.72 †
02-14-300-019	MCHENRY CO CONSERV DIST	E IL RT 173	Unincorporated	4.90 †
02-14-300-020	MCHENRY CO CONSERV DIST	E IL RT 173	Unincorporated	4.99 †
02-31-100-003	DAVID J SHELIA M PERRY	E IL RT 173	Unincorporated	0.10 †
02-13-400-010	CA 2010 TR MALANOWSKI	14108 IL RT 173	Unincorporated	4.90 †
02-13-400-009	RAMOS HILDA CRUZ CRUZ JOSE A	14116 IL RT 173	Unincorporated	4.91 †

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All 149,628 parcels in McHenry County as a single file — free, no account needed. Shapefile, GeoJSON, GeoPackage, CSV and Parquet.

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Frequently Asked Questions

How many parcels are in McHenry County?

The McHenry County assessor roll on file records 149,628 parcels across 51 communities, with 8.0% lying outside any incorporated place.

Who owns the most land in McHenry County?

MCHENRY CO CONSERV DIST holds 1,360 parcels, the most of any owner on record — the largest-landowners leaderboard ranks the top 25.

What is the typical parcel size in McHenry County?

Measured from mapped boundaries, the median parcel is 0.28 acres, and nine parcels in ten are under 4.4 acres. Boundary-measured area closely tracks deeded acreage but is not the deed.

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

2.9% of parcels list an owner mailing address outside IL, per the county’s own records.

How much of McHenry County is government-owned?

Government entities — federal, state, and local — hold 0.2% of the county’s parcels, classified from owner names on the roll.

How current is this data?

It comes from the McHenry 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 (51)

149,628 parcels across 51 communities in McHenry County.