| Kolasib district | |
| Settlement Type: | District of Mizoram |
| Coor Pinpoint: | Kolasib |
| Subdivision Type: | Country |
| Subdivision Name: | India |
| Subdivision Type1: | State |
| Subdivision Name1: | Mizoram |
| Established Title: | Established |
| Seat Type: | Headquarters |
| Seat: | Kolasib |
| Parts Type: | Tehsils |
| Parts Style: | para |
| Area Total Km2: | 1382.51 |
| Population As Of: | 2011 |
| Population Total: | 83,955 |
| Population Density Km2: | auto |
| Demographics Type1: | Demographics |
| Demographics1 Title1: | Literacy |
| Demographics1 Info1: | 93.50 |
| Demographics1 Title2: | Sex ratio |
| Demographics1 Info2: | 956 |
| Leader Title1: | Lok Sabha constituencies |
| Leader Name1: | Mizoram |
| Leader Title2: | Vidhan Sabha constituencies |
| Leader Name2: | 3 |
| Timezone1: | IST |
| Utc Offset1: | +05:30 |
Kolasib district is one of the eleven districts of Mizoram state in India.
Kolasib district has one completed Dam, Serlui B Dam[1] and two under construction Bairabi Dam[2] and Tuirial Dam Construction recommenced in September 2011.[3]
According to the 2011 census Kolasib district has a population of 83,955, roughly equal to the nation of Andorra.[4] This gives it a ranking of 620th in India (out of a total of 640). The district has a population density of 61PD/sqkm. Its population growth rate over the decade 2001-2011 was 27.28%. Kolasib has a sex ratio of 956 females for every 1000 males, and a literacy rate of 93.50%. 55.84% of the population lives in urban areas. Scheduled Tribes make up 87.67% of the population.[5]
According to the 2011 census, 75.93% of the population spoke Mizo, 7.56% Hmar, 5.30% Bengali, 4.63% Tripuri, 1.90% Nepali and 1.33% Hindi as their first language.[6]