Sonpur Junction is located in the Sonpur city of Vaishali district belonging to the Bihar State. The junction comes under the jurisdiction of East Central Railways. Station code is SEE. It is a major junction situated very close to Patna airport (15 km). The distance between Patna and Sonpur station is going to be very nearer after the completion of Digha-Sonepur over bridge on the Ganges.

Nearby interesting places are Patna, Golghar, Vaishali and Gaya. The junction is well connected to Mumbai, Delhi, Assam, Kolkata, Madhya Pradesh, Rajasthan, Maharashtra, Jharkhand, Uttar Pradesh, Jammu and Kashmir, Uttarakhand, Haryana Punjab, Kerala and Chandigarh by express trains. Major trains passing through this junction include LTT MFB special, DBG DEE PUJA Special, Darbhanga Express, Muzaffarpur Express, Sabarmati Express, Mour Dhawaj special, Swatantra S Express, Vaishali Express, Raptisagar Express, Bagh Express, Garib Navaj Express, Sadbhavana Express, and Amarnath Express. Hajipur is the nearest railway station.