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|• Body||Dehri Urban Development Authority (DUDA)|
|Elevation||52 m (171 ft)|
|• Official||Hindi, Urdu|
|• Others||Bhojpuri, Magahi|
|Time zone||UTC+5:30 (IST)|
According to the 2011 Census, Dehri had a population of 137,231. Males population is 72,372 and females population is 64,859. Dehri has an average literacy rate of 81.2%, higher than the national average of 74%. Male literacy is 87.54% and female literacy is 74.08%. Population of children in age group 0–6 years is 19,010, of which male population is 9,886 and female population is 9,124.