Ten provinces with most population: 2005 - 2007
 2005  
RankProvincesNumber%
1Bangkok5,658,9539.07
2Nakhon Ratchasima2,546,7634.08
3Ubon Ratchathani1,774,8082.84
4Khon Kaen1,747,5422.80
5Chiang Mai1,650,0092.64
6Buri Ram1,531,4302.45
7Udon Thani1,523,8022.44
8Nakhon Si Thammarat1,504,4202.41
9Si Sa Ket1,443,9752.31
10Surin1,374,7002.20
 Whole Kingdom62,418,054100
 2006  
RankProvincesNumber%
1Bangkok5,695,9569.07
2Nakhon Ratchasima2,555,5874.07
3Ubon Ratchathani1,783,0352.84
4Khon Kaen1,750,5002.79
5Chiang Mai1,658,2982.64
6Buri Ram1,536,7222.45
7Udon Thani1,527,5622.43
8Nakhon Si Thammarat1,510,4602.40
9Si Sa Ket1,446,4842.30
10Surin1,375,2572.19
 Whole Kingdom62,828,706100
 2007  
RankProvincesNumber%
1Bangkok5,716,2489.07
2Nakhon Ratchasima2,552,8944.05
3Ubon Ratchathani1,785,7092.83
4Khon Kaen1,752,4142.78
5Chiang Mai1,664,3992.64
6Buri Ram1,536,0702.44
7Udon Thani1,530,6862.43
8Nakhon Si Thammarat1,506,9972.39
9Si Sa Ket1,443,0112.29
10Surin1,372,6722.18
 Whole Kingdom63,038,247100
Source : Department of Local Administration,Ministry of Interior
Compiled by : Statistical Forecasting Bureau,  National Statistical Office