The town is at 80 metres (260 ft) altitude, 29 kilometres (18 mi) ESE of Janakpur.

The Siraha municipality is composed of total 22 wards, including Laxminya, Sanhaitha, Lagdigadiyani, Lagdigoth, Hakpara.

The population consists of Hindus, Muslims, and Buddhists, and the main languages are Nepali, Maithali, Hindi, and Urdu.

Janakpur Airport operates daily flights between Janakpur and Kathmandu[5] Nearby towns Laukaha in India and Thadi in Nepal are a part of one of the agreed route for Mutual Trade between India and Nepal.

[7] and Government of India has set up a Land Customs Station with a Superintendent level officer.

Notable people from Siraha include Dr. Ram Ray, an Associate Professor and Researcher, who has made hundreds of publications and has made contributions to knowledge about landslide hazards.