LandBrief

Jefferson County

Parcel & Property Data

282,736Total Parcels
$353,245Avg. Market Value
214,694Total Acres

About This Data

LandBrief holds 282,736 parcel records for Jefferson 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 Jefferson County assessor roll dated February 2026, loaded August 2026. See data sources for every county’s vintage.

Explore Jefferson County

Jefferson County by the Numbers

Median parcel size
0.21 acres
measured from mapped boundaries
90th-percentile parcel
0.70 acres
County land area
243,731 acres
U.S. Census measurement
Communities
87
0.1% of parcels outside any incorporated place
Median assessed value
$223,340
99% of parcels carry a value

Who Owns Jefferson County?

Share of the county’s 282,736 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
Individuals81.8%
Companies & organizations14.3%
Trusts & estates2.7%
Government0.4%
Other / unclassified0.9%

The largest owner on record is COUNTY METRO GO LOUISVILLE/JEF with 1,317 parcels — see the full landowner leaderboard.

Parcel Records (~282,736 total)

per page
Parcel IDOwnerAddressCityAcreageMarket Value
214477MANAGEMENT OF KENTUCKY WASTE2673 OUTER LOOPLouisville784.94$13,006,090
191503METRO PARKS LOUISVILLE1000 AMPHITHEATER RDLouisville684.09$3,080,240
165665REGIONAL AIRPORT AUTHO LOUISVILLE5051 ARFF WAYLouisville589.06$19,435,090
91015163GAS & ELECTRIC CO LOUISVILLE14660 DIXIE HWYLouisville587.05$1,500,970
1023939CEMENT CO LLC KOSMOS14301 BOHANNON AVELouisville516.72$9,542,450
91027229WORLDWIDE FORWARDING I UPS8001 ASHBOTTOM RDLouisville469.55$117,478,000
8301303CENTURY PARKS INC 21ST7510 TURKEY RUN PKWYLouisville456.04$5,053,800
1028434OF PARK COMM BOARD2900 MORAN AVELouisville449.28—
8100097MOTOR CO WORLD HEADQUA FORD11200 WESTPORT RDLouisville413.86$67,942,000
8300064PEN MILL FARM LLC WOLF5824 CHAMBERLAIN LNLouisville410.76$13,548,480
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All 282,736 parcels in Jefferson 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 Jefferson County?

The Jefferson County assessor roll on file records 282,736 parcels across 87 communities, with 0.1% lying outside any incorporated place.

Who owns the most land in Jefferson County?

COUNTY METRO GO LOUISVILLE/JEF holds 1,317 parcels, the most of any owner on record — the largest-landowners leaderboard ranks the top 25.

What is the typical parcel size in Jefferson County?

Measured from mapped boundaries, the median parcel is 0.21 acres, and nine parcels in ten are under 0.70 acres. Boundary-measured area closely tracks deeded acreage but is not the deed.

How much of Jefferson County is government-owned?

Government entities — federal, state, and local — hold 0.4% of the county’s parcels, classified from owner names on the roll.

How current is this data?

It comes from the Jefferson County assessor roll dated February 2026. 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 (87)

282,736 parcels across 87 communities in Jefferson County.