Kodarma is a city and a notified area in the Koderma subdivision of the Koderma district in the Indian state of Jharkhand. It is also the administrative headquarter of Koderma district.

Madhupur–Giridih–Koderma line is a 138 km -long single 5 ft 6 in broad gauge track from Madhupur town in Deoghar district to Koderma town in Koderma district via Giridih town in Giridih district of Jh