Hancock County

Parcel & Property Data

20,481Total Parcels

—Avg. Market Value

9,943Total Acres

About This Data

LandBrief holds 20,481 parcel records for Hancock 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 Hancock County assessor roll dated July 2025, loaded August 2026. See data sources for every county’s vintage.

Explore Hancock County

Largest landownersWho holds the most land in Hancock County, by total acreage.
Largest parcelsThe biggest individual tracts in the county, ranked by size.
Out-of-state ownersWho owns Hancock County from somewhere else, and where they live.

Hancock County by the Numbers

Median parcel size: 1.9 acres
measured from mapped boundaries
90th-percentile parcel: 82.2 acres
County land area: 507,999 acres
U.S. Census measurement
Communities: 17
54.5% of parcels outside any incorporated place
Out-of-state owners: 9.8% of parcels
by owner mailing address

Who Owns Hancock County?

Share of the county’s 20,481 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	76.5%
Companies & organizations	9.6%
Trusts & estates	9.1%
Government	3.1%
Other / unclassified	1.6%

The largest owner on record is Central Illinois Public Service Co with 82 parcels — see the full landowner leaderboard.

Parcel Records (~20,481 total)

Showper page

Parcel ID	Owner	Address	City	Acreage
2024000312	O'Neal ET AL c/o Thomas O'Neal	816 N County Rd 3050	Unincorporated	154.20
0217000584	Union Electric Co	—	Unincorporated	116.60
1136873000	IL Dept of Conservation	—	Hamilton	106.00
0211000075	Northern Illinois Gas Co	—	Unincorporated	102.61
1136869002	IL Dept of Conservation	—	Hamilton	86.47
1120401002	Deer Run Recreation Inc	—	Hamilton	83.19
0211000576	Niota Drainage and Levee District	—	Niota	80.66
1602000030	Illinois Department of Natural Resources	—	Unincorporated	74.50
1313151000	Thompson Rodger D	1550 N County Rd 2500	Unincorporated	72.50
2512000122	Lansing Carla S Revocable Trust	3049 E County Rd 480	Unincorporated	72.42

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All 20,481 parcels in Hancock 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 Hancock County?

The Hancock County assessor roll on file records 20,481 parcels across 17 communities, with 54.5% lying outside any incorporated place.

Who owns the most land in Hancock County?

Central Illinois Public Service Co holds 82 parcels, the most of any owner on record — the largest-landowners leaderboard ranks the top 25.

What is the typical parcel size in Hancock County?

Measured from mapped boundaries, the median parcel is 1.9 acres, and nine parcels in ten are under 82.2 acres. Boundary-measured area closely tracks deeded acreage but is not the deed.

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

9.8% of parcels list an owner mailing address outside IL, per the county’s own records.

How much of Hancock County is government-owned?

Government entities — federal, state, and local — hold 3.1% of the county’s parcels, classified from owner names on the roll.

How current is this data?

It comes from the Hancock 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 (17)

20,481 parcels across 17 communities in Hancock County.