Kolasib district is situated in the northern most region of the state surrounded by Aizawl ditrict in the south & east and Mamit district in the west and Assam state in the north. The goegraphical area of the district is 1382.51Sq.Kms. which is 6.56% of the state total geographical area. It is situated in between 23 ͦ - 5′ to 24 ͦ - 35′ North Latitude and 92 ͦ - 3′ to 93 ͦ East Longitude. The District is covered by Humid Sub-tropical Hill Zone and Humid mild tropical zone.
Kolasib Town is the headquarters of the district where various District Offices of different Departments viz. Agriculture Department, Horticulture Department, A.H & Vety. Department, ICAR Research Complex, KVK etc. are located in Kolasib Town. Animal Husbandry and Veterinary Department has 3 Veterinary Dispensaries and 7 Regional Health Centres. The district has three sub-divisions viz. Kolasib, Vairengte and Kawnpui.Agriculture is the main occupation in the district. There are 16881 cultivators, 1048 agricultural labourers, 311 industrial labourers and 9199 other workers. Adjacent to the National Highways and district road, a good number of Agriculture/Horticultural link roads has been constructed which serve for transportation of Agricultural and Horticultural products from the interior areas of the district.
The district consist of two R.D Block and 31 villages. The district has Bairabi village which is only place where communication by railway (the only rail head in Mizoram) is available, others by road only.
The total population of the district at present is 83054 which is 7.6% of the state population. The total number of household is 12255. The population density is60.07/sq.km against the state average of51.73/sq.Km. The demographic patterns of the district is indicated in the table below (As per 2010-2011 Census):-
Geographical Area (Ha.)
No. of Villages
No. of Households
The literacy percentage of the district is 94.54% which is more than the state average literacy rate i.e., 91.85%.
Total number of workers in the district is 32388. Total number of families involved in cultivation is 9578 out of which 7930 are jhum cultivators and 1648 are WRC Cultivators. 104nos of families are engaged in sericulture activities
Of the total geographical area 138251Ha. are under cultivation constituting 9.22% only. The land utilization of the district is indicated below:
Area in Ha.
Percentage of total area estimated
Reserved Forest area
Forest Plantation Area
Barren and uncultivated land
Land put to non-agriculture use
According to 2001 census, there are 9,578 operational holders in the district having 12,747hectare of land under their possession. Small and marginal farmers constitute 81.67% of the land holders with only 61.4% of land under their possession. The details of land holding patterns are presented below:-
Holding Size in Ha.
Number of Farmers
Total Area in Ha.
Kolasib district is the northern part of Mizoram state which enjoys moderate climate owing to its tropical location. It is neither very hot nor too cold throughout the year.It falls under the direct influence of the south west monsoon which recieves an adequate amount of rainfall during the monsoon season.The average rainfall of Kolasib district is 2703 mm per annum and highest rainfall during a particular month was 852 mm recorded during August and July.The salient thermo-characteristics of the district is that temperature do not fluctuate much throughout the year.The highest temperature observed during past decade was 350c in the month of July. The warmest months with mean daily maximum at about 260c and mean daily minimum at about 230c was observed during June and July.The temperature started to fall down from the month of November and it is minimize in December and January.
Spread of ACZ and AES in Kolasib District
Approximate Area in Ha.
Percentage of Total Area
Humid Sub-Tropical Hill Zone
N.Hlimen, Bukpui, Thingthelh, N.Chaltlang, Lungmuat, Nisapui, Serkhan, Lungdai
Khamrang, Kawnpui (N), Kawnpui (S), Bualpui, Thingdawl, Zanlawn
Humid Mild Tropical Zone
Kolasib, Bilkhawthlir, Vairengte, Pangbalkawn, N.Chhimluang
Hortoki, Bairabi, Meidum, Bukvannei, Buhchangphai, Phaisen, Saihapui (V), Phainuam, N.Chawnpui, Saiphai, Saipum, Builum