The following potential scenarios were assumed for the projection of population of the town.
Scenario 1: Projecting the population of Gelephu with the existing growth rate of population under the assumption that the future development in the region will not have profound effects on the population growth of the town.
Scenario 2: Projecting the population of the town with a minimal required increase in migration, created as a result of induced economic activities/ employment/investment in the region towards optimum use of space available in the town and in its immediate surrounding.
Scenario 3: Projecting the population of the town with a major increase in the migration initiated by major investments in the region and resulting highly induced economic activities/employment/investment in the region towards intensive utilization of spaces in the town and in the region.
4.10.1 Scenario 1
The first alternative examined for the development of Gelephu assumes that the future development in the town will continue with the present philosophy and attitude towards planning and population growth. The following assumptions are made with respect to this scenario:
Population Projection
In this scenario the population growth of the town, is projected (1) by considering the past trend of population growth in the town and (2) by assuming that the population growth of the town in the future will be a simple compound rate of increase.
In order to calculate the past trend of population growth of Gelephu, the population count of day scholars in the junior and middle secondary schools, from the base population data of 2002, are not accounted, in order to avoid double counting in the town population figures. Further, the population of civil servants and their dependants were considered separately and the growth trend of this sector is calculated separately. The population figure of the town is less accurate, since the existing population is calculated by multiplying an average household size of five people with the number of legal water connections provided by the Gelephu Municipal Corporation inside the municipal limit. There would clearly be households without any individual connection, and those with illegal connections.
From the available data the town population and the civil servant population has grown at a compound growth rate of 4.25% and 6.25% per annum between 1986 and 2002 respectively. The higher growth rate of the civil servant population in Gelephu is due to the increased concentration of army and police personnel in the town during the past decade. At this same time the urban growth rate of Thimphu stood at 5% per annum. Assuming that the present trend of population growth continues in Gelephu and considering that both the town and civil servants population will grow at same growth rate, the population of the town would be 28,623 by the year 2025.
Considering the present situation prevailing in the region and the inbuilt advantages of the town, together with the proposed infrastructure developments in the town, one can assume that Gelephu, in future, could grow in relation to the national average urban growth rate of 5% per annum. With respect to the above said assumptions the projected population for the town is as mentioned in the table below.
The base population considered for projection is 8,464 for the town population and 2,077 for the civil servant and their dependant population during the year 2002, derived from the Urban Sector Programme Support, Pre-Feasibility Study conducted by the Department of Urban Development and Engineering Services for the Gelephu urban area during January 2003.
Table 4.3 : Summary of the Population Growth in Gelephu according to Scenario - 1
Year |
Population projection with current 4.25% Compound Growth Rate |
Population projection with 5% Compound Growth Rate |
2005 |
11,943 |
12,203 |
2010 |
14,706 |
15,574 |
2015 |
18,108 |
19,877 |
2020 |
22,298 |
25,368 |
2025 |
27,456 |
32,377 |
The Gross Residential Density of the Gelephu Municipal Limit for the year 2025 would be between 52 and 59 persons per hectare.
Population Growth as per Scenario-1

Impact of Scenario 1
4.10.2 Scenario 2
The second alternative focuses on optimal utilization of the land available in the town, by minimally inducing growth and the required migration into the Gelephu town by planned economic activities in the region. The following assumptions are made for this scenario.
Land use and policy changes
Transport facilities
Infrastructure Facilities and Amenities
Development Control Regulation and Shelter Strategy
Urban Fringe Development Control
Population Projection
The population growth of Gelephu is projected; (1) by assuming that the population of the town in the future will grow with a compound rate derived from the past trends and applying corrections with respect to the present situations and development activities in the town; and (2) by assuming that the developmental activities in the region will have effects on the demographic status of the town by inducing the factor of migration into the town.
For the purpose of projecting the population of the town in this scenario two methods are adopted. In the first method the amount of migration that will be induced by the new developmental activity is considered. In the second method, population growth of a similar kind of town identical in terms of its location, physiographic character and developmental activities with Gelephu is studied to find out the possible trend of growth in the town.
Method – I
In the first method, to derive the amount of migration induced due to the assumed developmental activities, such as the proposed industrial estate, dry–port, Fulahari religious center, and regional level institutions in the area, certain case studies were considered. Through these case studies an attempt has been made to derive the quantity of employment per net acre of development generated. From this number of generated employment the possible population increase is calculated, which in turn is used to assume the amount of migration in the town. The case study includes : (1) the proposed industrial estate at Pasakha, Bhutan and (2) Employment density study prepared for the south California region during October 2001.
The proposed industrial estate at Pasakha, Bhutan, though accommodates few heavy industrial development, is primarily proposed to attract small and medium scale industrial development. From the application submitted to the Ministry of Trade and Industries for the establishment of industries in the estate, which specifies the land area requested for the establishment and expected employees the establishment will accommodate, an average of 14 employments per acre will be generated. However, it is expected that most of the industries will be allocated lesser land area than they have requested, which in due course will result in higher employment density per net acre in the proposed industrial estate. As a second case study the employment density study conducted by The Natelson Company Inc, for the Southern California Association of Governments during October 2001 is analyzed. The research conducted by the Natelson Company suggests an average employment density of 18 persons per net acre for light manufacturing industries, 30 persons per net acre for heavy industries and 11.5 persons per net acre for warehouses and port activities. Though the study was not carried out in Bhutan, the relative scarcity of land in Bhutan is expected to lead to comparable or sometime even higher employment per acre ratios.
With respect to the above study findings and in order to project the future population of Gelephu, the following assumptions were made:
The base population of the town for future projections, and the current annual population growth rate, are as considered in the population projection of Scenario-1.
Table 4.4 : Summary of the Population Growth in Gelephu according to Scenario – 2
Year |
Population projection with 5.50% Compound Growth Rate (an addition of 1.25% with current growth rate) |
Population projection with 6.0% Compound Growth Rate (an addition of 1. 75% with current growth rate) |
40% of total migration population induced by the proposed industrial estate |
50% of total migration population induced by the proposed industrial estate |
|
A |
B |
C |
D |
2005 |
12,378 |
12,555 |
- |
- |
2010 |
16,177 |
16,801 |
5,832 |
7,290 |
2015 |
21,143 |
22,483 |
11,664 |
14,580 |
2020 |
27,633 |
30,088 |
17,496 |
21,870 |
2025 |
36,115 |
40,264 |
23,328 |
29,160 |
The population of Gelephu will be in between 59,443 and 69,424 during the year 2025 with an average Gross Residential Density of 107–125 persons per hectare in the Gelephu Municipal Limit. These low and high estimates are calculated by adding the low ranges of A and C, and the high ranges of B and D respectively.
Population Growth as per Scenario-2
Method – II
In order to check the accuracy of the projected population of the town in this scenario, an alternative method of studying the population growth of a similar kind of town to Gelephu is adopted. For this reason, Phuentsholing town which had a population of 12,024 during 1981 (close to the population of Gelephu in 2002) is considered and the past 20 years of population growth of the town is studied. The location, character, urban dynamics, demographic character and then developmental activities which took place in the town could be easily compared to the present day Gelephu. The population surveys and studies carried out, for the preparation of urban development plan for Phuentsholing, by the National Urban Development Corporation of Bhutan in association with the United Nation’s Centre for Human Settlements (Habitat) during 1986-87, is considered as base for this case study. It could be noted at this point of discussion, that Gelephu today, offers much better opportunities for development than Phuentsholing did twenty years earlier, with new proposed development activities like industrial estate, dry port and International airport. Moreover, the “ Bhutan” of a quarter century back did not have the capacity of the Bhutan of today!
The population of Phuentsholing during 1971 and 1981 was estimated as 6,970 and 12,024 respectively. A growth of 5,052 people at a compound growth rate of 5.85% per annum characterized this time period. The population survey carried by NUDC in association with UNCHS (Habitat) during 1986 counted 16,307 persons with an annual compound growth rate of 6.30% between 1981 and 1986. The population growth of the town in this fifteen years time surpassed the average annual urban growth rate of the nation which was 4.4%, as well as other urban centers of Bhutan. The factors of the pivotal role of Phuentsholing in the overall development of Bhutan, as a parent town, or as a nucleus for trade and commerce for the entire region, as the entrance gateway to the Kingdom of Bhutan for people and goods entering the country and the large inflow of goods, equipment and consumer supplies in to the region. These factors, in addition to the employment opportunities created in the growing commercial and industrial economy of the town can be well attributed as the major reasons for such a high population growth rate in the town. All the reasons for the high population growth of Phuentsholing twenty years ago are the reality of the present in Gelephu.
One may argue that Phuentsholing is the staging centre for the capital city of Thimphu and for major hydro electric projects in Western Bhutan, but this can be off-set by the fact that much of the trade and commerce which could have been accommodated in Bhutan has shifted across the border in the adjacent Indian settlement of Jaigoan.
During the time of the preparation of Urban Development Plan, the population of the town for the year 2001 is projected in two ways. In the first scenario the population growth of the town is assumed to be low and slow with the annual growth rate reducing from its current growth rate of 6.30 to 4.80 equally after every five years. In the second scenario the population is assumed to grow in a high and rapid pace with an annual compound growth rate of 6.38%.
The population projection of the town for the year 2001 in scenario one and two were 36,105 and 41,235 respectively, which corresponds with the projected population of Gelephu for the year 2025, excluding the migration population induced by the industrial estate. It should be noted that the proposed industrial development in Pasakha near Phuentsholing is a new phenomenon and the population which will be induced by this is not considered during the population forecast done in 1986.
Impact of Scenario 2
4.10.3 Scenario 3
The third scenario assumed for population projection, focuses on rapid increase of population due to increased migration created as a result of highly induced economic activities/ employment/ investment in the region towards intensive utilization of spaces in the town and in the region. The following assumptions are made for this scenario :
Landuse and Policy Changes
Transportation facilities
Financial base
Marketing Gelephu
Land Development and Institutional Structure
Employment Opportunities
As a result of the all the assumed intense economic activities induced in the region, there will be a manifold increase in the migration rate into the region. Gelephu being the major urban centre of the region would attract larger migratory population than any other settlement in the region. The population of Gelephu by the year 2025 as a result of the highly induced migration ratio would be around 70,000 to 90,000.
Impacts of Scenario 3