| Organization | % | Target population | Sampling strategy | Sample size |
| Red Cross Society | 30% | 1240 | Purposive | 47 |
| National Youth Service | 26% | 1225 | Purposive | 40 |
| Kenya Police Service | 23% | 900 | Purposive | 35 |
| Mombasa Fire Brigade | 21% | 550 | Purposive | 33 |
| TOTAL | 100% | 3915 |
| 155 |