As of the 2011 Census of India, the town of Kolasib had a population of 24,272. The district as a whole has seen steady population growth, largely driven by rural-to-urban migration within the state and its status as an economic gateway.
* **Demographics:** The population is almost evenly split between males and females. The town boasts a very high literacy rate of over 93%, well above the Indian national average. * **Ethnicity:** The vast majority of residents belong to the Mizo ethnic group (including various sub-tribes such as the Lushai and Hmar). Due to its proximity to Assam, there are also minority populations of Assamese, Bengalis, and Nepalis. * **Religion:** Christianity is the dominant religion, with the Presbyterian Church of India being the largest denomination, followed by the Baptist Church, Salvation Army, and others. Small minorities practice Hinduism and Islam. * **Language:** Mizo is the lingua franca and the most widely spoken language. English is highly prevalent and used extensively in education and official administration. Hindi is also understood and spoken by merchants and those interacting with interstate trade.
