The RapidKL Bus network is divided into 6 main zones; namely:
- Area 1 - Kuala Lumpur City Centre
- Area 2 - Kepong, Selayang, Batu Caves, Gombak, Sentul
- Area 3 - Wangsa Maju, Hulu Klang, Keramat, Ampang, Pandan
- Area 4 - Cheras, Hulu Langat, Kajang, Putrajaya, Serdang
- Area 5 - Klang, Shah Alam Selatan, Subang Jaya, Jalan Klang Lama, Puchong.
- Area 6 - Shah Alam Utara, Subang, Damansara, PJ Utara, Bangsar
RapidKL bus services are catgeorized as local shuttles (Tempatan), trunk lines (Utama) and city shuttles (Bandar).