| Rank | County | GCP |
| 1. | Isiolo | $316 million |
| 2. | Samburu | $529 million |
| 3. | Lamu | $647 million |
| 4. | Tana River | $669 million |
| 5. | Marsabit | $680 million |
| 6. | Mandera | $701 million |
| 7. | Wajir | $742 million |
| 8. | Garissa | $787 million |
| 9. | West Pokot | $934 million |
| 10. | Taita-Taveta | $1.03 billion |
