Columbia County
Parcel & Property Data
About This Data
LandBrief holds 28,664 parcel records for Columbia 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 Columbia County assessor roll dated October 2022, loaded August 2026. See data sources for every county’s vintage.
Explore Columbia County
Columbia County by the Numbers
- Median parcel size
- 0.74 acres
measured from mapped boundaries - 90th-percentile parcel
- 26 acres
- County land area
- 421,558 acres
U.S. Census measurement - Communities
- 10
52.3% of parcels outside any incorporated place
Who Owns Columbia County?
Share of the county’s 28,664 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 | 73.8% |
| Companies & organizations | 14.5% |
| Trusts & estates | 8.0% |
| Government | 3.5% |
| Other / unclassified | 0.3% |
The largest owner on record is WEYERHAEUSER TIMBER HOLDINGS INC with 1,028 parcels — see the full landowner leaderboard.
Parcel Records (~28,664 total)
| Parcel ID | Owner | Address | City | Acreage |
|---|---|---|---|---|
| 31W000000100 | OREGON DEPARTMENT OF FISH & WILDLIFE | — | Unincorporated | 4120.14 |
| 31W000000100 | OREGON DEPARTMENT OF FISH & WILDLIFE | — | Unincorporated | 4120.14 |
| 31W000000100 | OREGON DEPARTMENT OF FISH & WILDLIFE | — | Unincorporated | 4120.14 |
| 31W000000100 | OREGON DEPARTMENT OF FISH & WILDLIFE | — | Unincorporated | 4120.14 |
| 31W000000100 | OREGON DEPARTMENT OF FISH & WILDLIFE | — | Unincorporated | 4120.14 |
| 31W000000100 | OREGON DEPARTMENT OF FISH & WILDLIFE | — | Unincorporated | 4120.14 |
| 31W000000100 | OREGON DEPARTMENT OF FISH & WILDLIFE | — | Unincorporated | 4120.14 |
| 31W000000100 | OREGON DEPARTMENT OF FISH & WILDLIFE | — | Unincorporated | 4120.14 |
| 31W000000100 | OREGON DEPARTMENT OF FISH & WILDLIFE | — | Unincorporated | 4120.14 |
| 31W000000100 | OREGON DEPARTMENT OF FISH & WILDLIFE | — | Unincorporated | 4120.14 |
Download Columbia County parcel data
All 28,664 parcels in Columbia County as a single file — free, no account needed. Shapefile, GeoJSON, GeoPackage, CSV and Parquet.
Get Columbia County on FreeParcelData →Nearby counties
Frequently Asked Questions
How many parcels are in Columbia County?
The Columbia County assessor roll on file records 28,664 parcels across 10 communities, with 52.3% lying outside any incorporated place.
Who owns the most land in Columbia County?
WEYERHAEUSER TIMBER HOLDINGS INC holds 1,028 parcels, the most of any owner on record — the largest-landowners leaderboard ranks the top 25.
What is the typical parcel size in Columbia County?
Measured from mapped boundaries, the median parcel is 0.74 acres, and nine parcels in ten are under 26 acres. Boundary-measured area closely tracks deeded acreage but is not the deed.
How much of Columbia County is government-owned?
Government entities — federal, state, and local — hold 3.5% of the county’s parcels, classified from owner names on the roll.
How current is this data?
It comes from the Columbia 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)
28,664 parcels across 10 communities in Columbia County.