LandBrief

Adams County

Parcel & Property Data

38,680Total Parcels
—Avg. Market Value
524,355Total Acres

About This Data

LandBrief holds 38,680 parcel records for Adams 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 Adams County assessor roll dated July 2025, loaded August 2026. See data sources for every county’s vintage.

Explore Adams County

Adams County by the Numbers

Median parcel size
0.48 acres
measured from mapped boundaries
90th-percentile parcel
50.5 acres
County land area
547,297 acres
U.S. Census measurement
Communities
34
23.7% of parcels outside any incorporated place
Out-of-state owners
4.9% of parcels
by owner mailing address

Who Owns Adams County?

Share of the county’s 38,680 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
Individuals74.8%
Companies & organizations11.5%
Trusts & estates11.3%
Government1.3%
Other / unclassified1.1%

The largest owner on record is SHRIVER BROTHERS LP with 96 parcels — see the full landowner leaderboard.

Parcel Records (~38,680 total)

per page
Parcel IDOwnerAddressCityAcreage
160025000300CITY OF QUINCY1645 HIGHWAY 104Unincorporated673.27
160025000300CITY OF QUINCY1645 HIGHWAY 104Unincorporated673.27
160025000300CITY OF QUINCY1645 HIGHWAY 104Unincorporated673.27
210034400100OSAGE AGRI INC—Unincorporated524.18
160025000200CITY OF QUINCY—Unincorporated479.50
160025000200CITY OF QUINCY—Unincorporated479.50
160025000200CITY OF QUINCY—Unincorporated479.50
100021100000NUESSEN FARMS LLC—Unincorporated382.00
100021100000NUESSEN FARMS LLC—Unincorporated382.00
020006900000SHRINERS HOSPITALS FOR C C2830 E 2500TH STGolden354.50
Page 1 of 3868

Download Adams County parcel data

All 38,680 parcels in Adams County as a single file — free, no account needed. Shapefile, GeoJSON, GeoPackage, CSV and Parquet.

Get Adams County on FreeParcelData →

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Frequently Asked Questions

How many parcels are in Adams County?

The Adams County assessor roll on file records 38,680 parcels across 34 communities, with 23.7% lying outside any incorporated place.

Who owns the most land in Adams County?

SHRIVER BROTHERS LP holds 96 parcels, the most of any owner on record — the largest-landowners leaderboard ranks the top 25.

What is the typical parcel size in Adams County?

Measured from mapped boundaries, the median parcel is 0.48 acres, and nine parcels in ten are under 50.5 acres. Boundary-measured area closely tracks deeded acreage but is not the deed.

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

4.9% of parcels list an owner mailing address outside IL, per the county’s own records.

How much of Adams County is government-owned?

Government entities — federal, state, and local — hold 1.3% of the county’s parcels, classified from owner names on the roll.

How current is this data?

It comes from the Adams 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 (34)

38,680 parcels across 34 communities in Adams County.