Ruiru is a town in Kiambu County, located within 3KM of Nairobi boundary and about half a Kilometre from Kenyatta University main campus. It is connected by both rail and road. Its immediate neighbours are Kahawa Wendani and Kahawa Sukari.
The town has experienced rapid population growth in recent years due to shortage of housing in Nairobi and its close proximity to the city. Ruiru is a major industrial town with industries such as Devki steel mills, Super Foam, Spinners and spinners garment factory and Ruiru feeds. It is well served by banks and shopping malls with supermarkets such as Maathais and Powerstar. Ruiru is currently experiencing a housing boom as many coffee estates are converted into residential areas like the multi-billion Tatu city estate.
Thika super highway and the Eastern Bypass pass through the town linking it to JKIA airport and the city of Nairobi.