Clay soils around Tulsa
| County | Expansive clay | High-swell land | High water table |
|---|---|---|---|
| Tulsa | 46.9% | 35.3% | 52.3% |
| Rogers | 38.0% | 34.0% | 41.9% |
| Wagoner | 33.6% | 33.2% | 48.4% |
| Osage | 40.9% | 40.6% | 40.4% |
| Creek | 26.7% | 23.3% | 37.8% |
Sources: FoundationSoils Tulsa County soil summary (USDA SSURGO, data as of Oct 13, 2026), FoundationSoils Rogers County soil summary (USDA SSURGO, data as of Oct 13, 2026), FoundationSoils Wagoner County soil summary (USDA SSURGO, data as of Oct 13, 2026), FoundationSoils Osage County soil summary (USDA SSURGO, data as of Oct 13, 2026), FoundationSoils Creek County soil summary (USDA SSURGO, data as of Oct 13, 2026).
Clay swells when wet and shrinks when dry. Tulsa County averages about 41.85 inches of rain a year and was 100% in drought on Oct 13, 2026 (FoundationSoils Tulsa County soil summary (USDA SSURGO, data as of Oct 13, 2026)).
Last checked Oct 23, 2026.