DeKalb County

Parcel & Property Data

42,866Total Parcels

—Avg. Market Value

387,817Total Acres

About This Data

LandBrief holds 42,866 parcel records for DeKalb 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 DeKalb County assessor roll dated July 2025, loaded August 2026. See data sources for every county’s vintage.

Explore DeKalb County

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

DeKalb County by the Numbers

Median parcel size: 0.29 acres
measured from mapped boundaries
90th-percentile parcel: 31 acres
County land area: 404,056 acres
U.S. Census measurement
Communities: 26
13.7% of parcels outside any incorporated place
Out-of-state owners: 5.0% of parcels
by owner mailing address

Who Owns DeKalb County?

Share of the county’s 42,866 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	77.2%
Companies & organizations	16.2%
Trusts & estates	3.4%
Government	2.5%
Other / unclassified	0.7%

The largest owner on record is ALMANAR TRADING LLC with 291 parcels — see the full landowner leaderboard.

Parcel Records (~42,866 total)

Showper page

Parcel ID	Owner	Address	City	Acreage
1616300007	SRL FARMS LLC	3985 ROLLO RD EARLVILLE, IL 60518	Earlville	387.60
1626100003	STEPHANIE KRZYZOWSKI FAMILY LP	—	Unincorporated	360.00
1309200004	ROBERT W MULLINS DOT	CEMETERY RD SHABBONA, IL 60550	Lee	354.09
1219200001	NATL BANK & TRUST CO	12814 PERRY RD DEKALB, IL 60115	Dekalb	344.00
1301100002	BUSEY BANK	—	Unincorporated	322.68
0235100001	MILLER HOMESTEAD INC	PLEASANT HILL RD KINGSTON, IL 60145	Unincorporated	320.00
1035100006	BUSEY BANK	MCGIRR RD SHABBONA, IL 60550	Unincorporated	319.18
1628200005	SRL FARMS LLC	1895 HYDE RD EARLVILLE, IL 60518	Earlville	318.53
1130100003	FARMS TEND TRUST	MINNEGAN RD WATERMAN, IL 60556	Unincorporated	316.15
0122300002	IL DEPT OF NATURAL RESOURCES	STATE RTE 72 KIRKLAND, IL 60146	Unincorporated	315.24

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Frequently Asked Questions

How many parcels are in DeKalb County?

The DeKalb County assessor roll on file records 42,866 parcels across 26 communities, with 13.7% lying outside any incorporated place.

Who owns the most land in DeKalb County?

ALMANAR TRADING LLC holds 291 parcels, the most of any owner on record — the largest-landowners leaderboard ranks the top 25.

What is the typical parcel size in DeKalb County?

Measured from mapped boundaries, the median parcel is 0.29 acres, and nine parcels in ten are under 31 acres. Boundary-measured area closely tracks deeded acreage but is not the deed.

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

5.0% of parcels list an owner mailing address outside IL, per the county’s own records.

How much of DeKalb County is government-owned?

Government entities — federal, state, and local — hold 2.5% of the county’s parcels, classified from owner names on the roll.

How current is this data?

It comes from the DeKalb 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.