While the entire Senapati District has a population of over 100,000, the urban area of Senapati town has an estimated population ranging between 10,000 and 15,000, making it a tightly-knit, bustling community.
The population is predominantly composed of Scheduled Tribes, specifically the Naga tribes (Mao, Poumai, Maram, Thangal, and Zeliangrong), along with minority communities of Kukis, Meiteis, and migrant traders from other parts of India. Christianity is the dominant religion in the town, reflected in the numerous churches of various denominations that dot the landscape. A high emphasis is placed on education, and the town boasts a relatively high literacy rate compared to rural state averages. English is widely understood and is the primary medium of education, while local tribal languages and Manipuri serve as lingua francas.