The Gross County Product per capita, or GCP per capita, is a measure of a county’s economic output that accounts for its number of people. It divides the county’s gross county product by its total population. The fact that the GCP per capita divides a county’s economic output by its total population makes it a good measurement of a county’s standard of living, especially since it tells you how prosperous a county feels to each of its residents.
Here are the top 10 richest counties in Kenya.
| Rank | County | GCP per capita |
| 1. | Nyandarua | $6,955 |
| 2. | Elgeyo-Marakwet | $6,561 |
| 3. | Nairobi | $6,344 |
| 4. | Mombasa | $5,412 |
| 5. | Nakuru | $4,912 |
| 6. | Lamu | $4,880 |
| 7. | Kiambu | $4,422 |
| 8. | Nyeri | $4,291 |
| 9. | Machakos | $3,863 |
| 10. | Embu | $3,662 |
kirinyanga should be included in the list