Gilliam County
Parcel & Property Data
About This Data
LandBrief holds 3,587 parcel records for Gilliam 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 Gilliam County assessor roll dated October 2022, loaded August 2026. See data sources for every county’s vintage.
Explore Gilliam County
Gilliam County by the Numbers
- Median parcel size
- 9.6 acres
measured from mapped boundaries - 90th-percentile parcel
- 634 acres
- County land area
- 771,022 acres
U.S. Census measurement - Communities
- 4
67.6% of parcels outside any incorporated place
Who Owns Gilliam County?
Share of the county’s 3,587 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 |
|---|---|
| Other / unclassified | 100.0% |
Parcel Records (~3,587 total)
| Parcel ID | Owner | Address | City | Acreage |
|---|---|---|---|---|
| 06S19E0000-01100 | — | 12893 BUTTE CREEK LN FOSSIL OR 97830 | Unincorporated | 1783.47 † |
| 05S19E0000-02300 | — | UNDETERMINED SITUS ADDRESS | Unincorporated | 84.99 † |
| 06S19E0000-01400 | — | UNDETERMINED SITUS ADDRESS | Unincorporated | 82.67 † |
| 05S19E0000-02400 | — | UNDETERMINED SITUS ADDRESS | Unincorporated | 79.78 † |
| 05S19E0000-02800 | — | UNDETERMINED SITUS ADDRESS | Unincorporated | 1122.92 † |
| 05S19E0000-02200 | — | UNDETERMINED SITUS ADDRESS | Unincorporated | 31.68 † |
| 05S19E0000-02600 | — | UNDETERMINED SITUS ADDRESS | Unincorporated | 42.17 † |
| 05S19E0000-02400 | — | UNDETERMINED SITUS ADDRESS | Unincorporated | 7.57 † |
| 05S19E0000-02700 | — | UNDETERMINED SITUS ADDRESS | Unincorporated | 28.78 † |
| 05S19E0000-02500 | — | UNDETERMINED SITUS ADDRESS | Unincorporated | 42.10 † |
Download Gilliam County parcel data
All 3,587 parcels in Gilliam 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 Gilliam County?
The Gilliam County assessor roll on file records 3,587 parcels across 4 communities, with 67.6% lying outside any incorporated place.
What is the typical parcel size in Gilliam County?
Measured from mapped boundaries, the median parcel is 9.6 acres, and nine parcels in ten are under 634 acres. Boundary-measured area closely tracks deeded acreage but is not the deed.
How current is this data?
It comes from the Gilliam 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 (4)
3,587 parcels across 4 communities in Gilliam County.