|Elevation||42 m (138 ft)|
|• Official||Vajjika, Hindi|
|Time zone||IST (UTC+5:30)|
|ISO 3166 code||IN-BR|
|Lok Sabha constituency||Hajipur|
|Vidhan Sabha constituency||Lalganj|
Lalganj is a municipality since 1869 in Vaishali district in the Indian state of Bihar. Lalganj was important town and river port. Sharda Sadan Pushtakalya(Library) is one the biggest library in bihar. It was the center of independence movement also Gandhiji had came here. It was the part of Tirhut District and became Lalganj Municipal Board in 1869 with 11 Commissioners along with Hajipur and Sitamarhi. It lost 3 sq miles area during 1951 Census. Lalganj Municipalty had 4 wards till 1972, 1981: 12 wards, 14 wards:2001 and 19 wards: 2011. After independence it has not grown as fast due to lack focus by the politicians. It became smaller and smaller in area.
Lalganj is a Nagar Panchayat city in district of Vaishali, Bihar. It is well connected to Hajipur, Saray, Muzzaffarpur, Vaishali. The Lalganj city is divided into 19 wards for which elections are held every 5 years. The Lalganj Nagar Panchayat has population of 37,098 of which 19,671 are males while 17,427 are females as per report released by Census India 2011.
Population of Children with age of 0-6 is 5749 which is 15.50 % of total population of Lalganj (NP). In Lalganj Nagar Panchayat, Female Sex Ratio is of 886 against state average of 918. Moreover Child Sex Ratio in Lalganj is around 916 compared to Bihar state average of 935. Literacy rate of Lalganj city is 71.91 % higher than state average of 61.80 %. In Lalganj, Male literacy is around 78.19 % while female literacy rate is 64.78 %.
Lalganj Nagar Panchayat has total administration over 6,339 houses to which it supplies basic amenities like water and sewerage. It is also authorize to build roads within Nagar Panchayat limits and impose taxes on properties coming under its jurisdiction.
Lalganj is located at  It has an average elevation of 42 metres (137 feet). One of the famous temples in the city is 'Suryana Mandir' which is located in the middle of the city. Lalganj is a farser growing town of the vaishali district of Indian state of Bihar. It is 20 km far from Hajipur in north direction. This town is located on the bank of Narayani river.(Gandak River). Lalganj is 40 km far from the capital of bihar. The state highway 74 is going through Lalganj..
As of 2001[update] India census, Lalganj (Hindi: लाल गंज, Urdu: لال گنج) is a town and a nagar panchayat with 61 village panchayats in the Vaishali district of the Indian state of Bihar. It is Located on The bank of Narayani River(Gandak River).
- Falling Rain Genomics, Inc - Lalganj
- "Census of India 2001: Data from the 2001 Census, including cities, villages and towns (Provisional)". Census Commission of India. Archived from the original on 2004-06-16. Retrieved 2008-11-01.
- "Lalganj Vaishali Pin code". citypincode.in. Retrieved 2014-05-19.