Sarbananda Sonowal was born on 31 October 1962 to an Assamese Hindu Sonowal family in Muluk Gaon located in the Dibrugarh district of Assam to Jibeswar Sonowal (father) and Dineswari Sonowal (mother).
Sonowal did his schooling at Don Bosco High School, Dibrugarh.[11] He completed his B.A.(Hons) in English from Dibrugarh Hanumanbax Surajmall Kanoi College under Dibrugarh University and his LLB form Dibrugarh University and B.C.J from Gauhati University