The total target service area is
Total target service area
(270 km² - municipality service area and 50 km² - peri–urban areas).
The current water supply system however only serves an estimated 250 km².
The geographical areas covered by the water supply network includes;
Lanet | Free area | Naka Estate | Mwariki East farm near the Pipeline Oil Corporation tanks | Mzee Wanyama | Nakuru Blankets up to Shah Lalji Academy on | Maasai Avenue up to Mwariki south estate | Langalanga | Racetrack | Freehold estates | Central Business District | Industrial Area | Shaabab Estate | Koinange Estate | Kaptembwa | Barut,Rhonda Estates | Milimani, Section 58 | Donsonville Estate | Menengai Estate | Japanese Flats | Spin Knit Surroundings | Engashura area | London | Olbanita Corridor | Mountain View