The Brahmaputra Valley is a region situated between hill ranges of the eastern and northeastern Himalayan range in Eastern India.
The valley consists of the western Brahmaputra valley covering the regions of Goalpara and Kamrup; the central Brahmaputra valley region covering Darrang, Nagaon and the North Bank and Eastern Brahmaputra Valley comprising districts of Sonitpur, Lakhimpur, Dibrugarh and Sibsagar. The Teesta River in North Bengal also drains into Brahmaputra River.
The Brahmaputra Valley with its rainforest-like climate contains some of the most productive soils in the world. The Brahmaputra River flows from Assam to Bengal where it meets the Ganges River to form the world's largest delta and finally flows into the Bay of Bengal in the south.
The majority of the people of valley are Hindus, mostly speaks Assamese language and its variants. The valley is more populous and prosperous than rest of the region because of its accessibilty to rest of the country.
- Goswami, Homeswar (1985). Population Trends in the Brahmaputra Valley, 1881-1931. Mittal Publications. p. 206.
- Goswami, Homeswar (1985). Population Trends in the Brahmaputra Valley, 1881-1931. Mittal Publications. p. 10.
- Das, Bhuban Mohan (1997). The Brahmaputra valley population. p. 156.