 India census, The Dalsinghsarai Nagar Panchayat has population of 23,862 of which 12,552 are males while 11,310 are females as per report released by Census India 2011. Population of Children with age of 0-6 is 3710 which is 15.55% of total population of Dalsinghsarai . 
The river traversing the city is Balan which is originated near Kanti(Muzaffarpur).
Dalsinghsarai is a sub-division whose sub divisional officer is Mr.Vishnu Dev Mandal,a Anchal whose Anchal Adhikari is Mr.Vijay Kumar Tiwari,a block whose block developing officer is Mr.Shashi Bhushan and a city council whose chairman is Mr.Rajesh Paswan.

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