The distribution of the urban population in Thailand is mainly focusing in Bangkok Metropolitan
Area and Vicinities. This specific area had accounted for 42 percent of the total urban population in
2005 and Bangkok had possessed the share of 32 percent of them. Due to the fact that Bangkok is an
only city, which has the size of population beyond 6,000,000, therefore; the size of population is 20
times more than its second largest city, Nonthaburi. Within the top 10 largest city in Thailand most
cities have population ranging from 100,000 – 300,000 inhabitants and settled along the Bangkok’s
vicinities and in the major regional growth centers. It is noted that 76 percent of cities in Thailand has a
smaller size population that is under 10,000.
As a result of rapid and imbalance of urbanization, Thailand has encountered many problems.
Such problems include traffic congestion, insufficient of facility and utility, social and housing
problems and environmental pollution. Furthermore, the country inevitably faces the problem of
disparity between urban and local area, rapid deterioration of nature and natural disasters.