Jefferson County
Parcel & Property Data
About This Data
LandBrief holds 15,395 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 June 2025, loaded August 2026. See data sources for every county’s vintage.
Explore Jefferson County
Jefferson County by the Numbers
- Median parcel size
- 1.1 acres
measured from mapped boundaries - 90th-percentile parcel
- 76.8 acres
- County land area
- 340,880 acres
U.S. Census measurement - Communities
- 11
77.1% of parcels outside any incorporated place
Who Owns Jefferson County?
Share of the county’s 15,395 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 | 81.3% |
| Companies & organizations | 7.1% |
| Trusts & estates | 9.3% |
| Government | 1.5% |
| Other / unclassified | 0.7% |
The largest owner on record is Jefferson County Kansas with 1,392 parcels — see the full landowner leaderboard.
Parcel Records (~15,395 total)
| Parcel ID | Owner | Address | City | Acreage |
|---|---|---|---|---|
| 0440293001012002000 | Seichepine, Edward Lewis Jr Michelle L | 124 Locust ST, Nortonville, KS 66060 | Nortonville | 0.86 † |
| 0440293001033001000 | Wilcox, Alva E | 421 Pine ST, Nortonville, KS 66060 | Nortonville | 0.28 † |
| 0440293001028007000 | Church, St Matthews Evangelical Lutheran Inc | 311 Elm ST, Nortonville, KS 66060 | Nortonville | 0.32 † |
| 0440293001033002000 | Zacharias, Cecelia | 520 Taggart ST, Nortonville, KS 66060 | Nortonville | 0.29 † |
| 0440293001025001000 | Brown, Spencer R Holly J | 123 Locust ST, Nortonville, KS 66060 | Nortonville | 0.34 † |
| 0440293001028006000 | Courter, Richard G | Wilbur, Erica | 305 Elm ST, Nortonville, KS 66060 | Nortonville | 0.32 † |
| 0440293001028004000 | Lux, Jim Lux, Lynn | 312 Pine ST, Nortonville, KS 66060 | Nortonville | 0.33 † |
| 0440293001027001000 | Wilcox, Alva E | 221 Elm ST, Nortonville, KS 66060 | Nortonville | 0.26 † |
| 0440293000000004000 | The Irrevocable Mauzey Farm Trust Mauzey Irrevocable Trust, Dorothy Lanell | 198th ST, Nortonville, KS 66060 | Unincorporated | 3.66 † |
| 0440293001028005000 | Swendson Family Revocable Trust | 302 Pine ST, Nortonville, KS 66060 | Nortonville | 0.32 † |
Download Jefferson County parcel data
All 15,395 parcels in Jefferson County as a single file — free, no account needed. Shapefile, GeoJSON, GeoPackage, CSV and Parquet.
Get Jefferson County on FreeParcelData →Nearby counties
Frequently Asked Questions
How many parcels are in Jefferson County?
The Jefferson County assessor roll on file records 15,395 parcels across 11 communities, with 77.1% lying outside any incorporated place.
Who owns the most land in Jefferson County?
Jefferson County Kansas holds 1,392 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 1.1 acres, and nine parcels in ten are under 76.8 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 1.5% 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 June 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 (11)
15,395 parcels across 11 communities in Jefferson County.