 Rayong is a city ("thesaban nakhon") which covers "tambons" Tha Pradu and Pak Nam and parts of "tambons" Choeng Noen and Noen Phra.The town ("thesaban mueang") Map Ta Phut covers the whole "tambon" Map Ta Phut and Huai Pong, parts of Noen Phra and Thap Ma and also parts of "tambon" Mapkha of neighboring Nikhom Phatthana District.There are a further two sub-district municipalities ("thesaban tambon").