It has an average elevation of 77 metres (252 feet). Demographics:-
As of 2011 India census, Siwan had a population of 108,172. Males constitute 47% of the population and females 53%. Siwan has a literacy rate of 72%, higher than the national average of 59.5%: male literacy is 69%, and female literacy is 55%. In Siwan, 15% of the population is under 6 years of age. History:-
The word "Siwan" means
the border in Bhojpuri. Currently it is not located as border district of Bihar, India but formerly it was the southern border of Greater Nepal that's why it called "Siwan", the border. Dr. Rajendra Prasad (डॉ0 राजेन्द्र प्रसाद ) (December 3, 1884– February 28, 1963) was the first President of India.He was born in Zeradei, in the Siwan district of Bihar. Rajendra Prasad was an independence activist and, as a leader of the Congress Party, played a prominent role in the Indian Independence Movement. He served as President of the Constituent assembly that drafted the constitution of the Republic from 1948 to 1950. He had also served as a Cabinet Minister briefly in the first Government of Independent India. Deshratna Dr. Rajendra Prasad as long as he remained in Patna to lead the Freedom Movement. He lived and worked here since the establishment of Bihar Vidyapeeth on 6 February 1921