MUWASCO operates in four wards: Mbiri, Township, Kimathi and Kiharu wards.
Customer base summary
- Active water connections – 16,679
- Total Registered customers – 20,152
- Water coverage – 96%
- Percentage % Active Accounts 83%
| KPI | 2016/2017 | 2017/2018 | 2018/2019 | 2019/2020 | 2020/2021 |
| NRW | 32% | 26% | 25% | 25% | 25% |
| Water coverage | 90% | 90% | 91% | 93% | 96% |
| Hour of supply (#) | 24 | 24 | 24 | 24 | 24 |
| Staff productivity (#) | 5 | 5 | 6 | 6 | 6 |
| Revenue Collection efficiency | 88% | 100% | 92% | 91% | 95% |
| O&M cost coverage | 122% | 121% | 110% | 116% | 104% |
| Metering ratio | 100% | 100% | 100% | 100% | 100% |