| Country | Currency | Population (thousands) | GDP (millions of $) | Share of GDP in ECCAS (in%) |
| Angola | Kwanza | 29,784 | 122,124 | 48 |
| Burundi | Burundian Franc | 10,864 | 3172 | 1 |
| Cameroon | Franc CFA | 24,054 | 34,923 | 14 |
| Central african republic | Franc CFA | 4659 | 1949 | 1 |
| Republic of Congo | Franc CFA | 5261 | 8701 | 3 |
| Democratic Republic of Congo | Congolese franc | 81,340 | 37,642 | 15 |
| Gabon | Franc CFA | 2025 | 15,014 | 6 |
| Equatorial Guinea | Franc CFA | 1268 | 12,294 | 5 |
| Rwanda | Rwandan franc | 12,208 | 9135 | 4 |
| Sao Tome and Principe | Dobra | 204 | 393 | 0 |
| Chad | Franc CFA | 14,900 | 9871 | 4 |
| ECCAS area | 186 567 | 255,218 | ||
| which EMCCA zone | Franc CFA | 52,167 | 82,752 | 32 |