| Tigris-Euphrates Rivers | Turkey | Iraq | Syria | Iran | Total |
| Discharge km3∙year−1 | 65.7 | 6.8 | 0.5 | 11.2 | 84.2 |
| Discharge (%) | 78.1 | 8.1 | 0.5 | 13.3 | 100 |
| Drainage Area km2 | 170,000 | 469,000 | 77,000 | 37,000 | 819,000 |
| Drainage Area (%) | 20.5 | 46.0 | 9.0 | 19.0 | 94.5 |
| Rivers Length (km) | 1630 | 2478 | 754 | — | 4862 |
| Rivers Length (%) | 33.5 | 51.0 | 15.5 | — | 100 |
| Irrigable lands km2 | 24,270 | 40,000 | 9500 | __ | 73,700 |
| Irrigable lands (%) | 33 | 54.2 | 12.8 | 100 |