Jefferson County
Parcel & Property Data
About This Data
LandBrief holds 13,002 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 October 2022, loaded August 2026. See data sources for every county’s vintage.
Explore Jefferson County
Jefferson County by the Numbers
- Median parcel size
- 1.5 acres
measured from mapped boundaries - 90th-percentile parcel
- 79.1 acres
- County land area
- 1,140,285 acres
U.S. Census measurement - Communities
- 10
22.9% of parcels outside any incorporated place
Who Owns Jefferson County?
Share of the county’s 13,002 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 | 71.5% |
| Companies & organizations | 12.8% |
| Trusts & estates | 10.3% |
| Government | 5.0% |
| Other / unclassified | 0.3% |
The largest owner on record is U S A with 478 parcels — see the full landowner leaderboard.
Parcel Records (~13,002 total)
| Parcel ID | Owner | Address | City | Acreage |
|---|---|---|---|---|
| 0910000000100 | WARM SPRNGS INDIAN RESERVATION | — | Unincorporated | 23080.87 |
| 1009000000100 | WARM SPRNGS INDIAN RESERVATION | — | Unincorporated | 23028.57 |
| 1011000000100 | WARM SPRNGS INDIAN RESERVATION | — | Unincorporated | 23014.03 |
| 0909000000100 | WARM SPRNGS INDIAN RESERVATION | — | Unincorporated | 22994.27 |
| 0911000000100 | WARM SPRNGS INDIAN RESERVATION | — | Unincorporated | 22785.34 |
| 0912000000100 | WARM SPRNGS INDIAN RESERVATION | 3270 NW HIGHWAY 26 | Warm Springs | 20745.90 |
| 1308000000100 | U S A | — | Unincorporated | 20610.00 |
| 1110000000200 | U S A | — | Unincorporated | 20327.15 |
| 1010000000100 | WARM SPRNGS INDIAN RESERVATION | — | Unincorporated | 20136.75 |
| 1314000000100 | U S A | 15152 SE FS 5720-80 RD | Unincorporated | 19846.72 |
Download Jefferson County parcel data
All 13,002 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 13,002 parcels across 10 communities, with 22.9% lying outside any incorporated place.
Who owns the most land in Jefferson County?
U S A holds 478 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 1.5 acres, and nine parcels in ten are under 79.1 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 5.0% 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 October 2022. 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 (10)
13,002 parcels across 10 communities in Jefferson County.