NARUWASCO’s area of coverage is over 7000Km2 with a population of over 1.1 million. The current population served with water is 350,000. The current total connections is over 23,000 served with a production of 23,000M2 per day.
For ease of operations, we have divided our service area into 5 areas/regions, namely:
| No | Region | Specific areas |
| 1 | Eastern | Gilgil, Langalanga, Kikopey, karunga |
| 2 | Western | Salgaa, Sachangwan, Rongai, Mangu, Kampi ya Moto |
| 3 | Southern | Elburgon, Molo, Arimi, Kibunja |
| 4 | Central | Njoro, Mbaruk, Kiamunyi, Njuguini |
| 5 | Northern | Bahati, Subukia, Kabatini, Ndungiri |
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