Soil Quality · Washington
Soil Quality
Soil composition, pH, drainage, and organic matter content
Top 10 — Soil Quality in Washington
Score reflects soil quality only — not overall county quality.
All Washington Counties — Soil Quality Rankings
12 counties ranked by soil quality score. Overall Score shown for context.
| # | County | Soil Quality Score | Overall Score |
|---|---|---|---|
| 1 | Whitman County, WA | 79 | 49.3 |
| 2 | Island County, WA | 76.1 | 50.9 |
| 3 | Stevens County, WA | 74.5 | 56.3 |
| 4 | San Juan County, WA | 72.1 | 55.8 |
| 5 | Lincoln County, WA | 69.5 | 60.6 |
| 6 | Spokane County, WA | 67.7 | 36.8 |
| 7 | Clark County, WA | 54 | 38.1 |
| 8 | Cowlitz County, WA | 52.5 | 35.6 |
| 9 | Douglas County, WA | 52 | 44.9 |
| 10 | Adams County, WA | 34.3 | 37.6 |
| 11 | Franklin County, WA | 33.1 | 34.8 |
| 12 | Grant County, WA | 32.5 | 32.8 |