Ten provinces with most road traffic accidents: 2004 - 2006
  2004  
Rank Provinces Number
1 Bangkok 54,807
2 Chiang Mai 8,562
3 Samut Prakan 4,704
4 Phra Nakhon Si Ayutthaya 3,598
5 Nakhon Si Thammarat 3,015
6 Nonthaburi 2,545
7 Phuket 2,065
8 Nakhon Ratchasima 2,043
9 Nakhon Pathom 1,790
10 Pathum Thani 1,731
  Whole Kingdom 124,530
  2005  
Rank Provinces Number
1 Bangkok 50,745
2 Chiang Mai 8,489
3 Samut Prakan 5,072
4 Phra Nakhon Si Ayutthaya 3,605
5 Phuket 2,931
6 Nakhon Si Thammarat 2,467
7 Surat Thani 2,354
8 Chon Buri 2,275
9 Nonthaburi 1,959
10 Pathum Thani 1,954
  Whole Kingdom 122,122
  2006  
Rank Provinces Number
1 Bangkok 50,633
2 Samut Prakan 6,209
3 Chiang Mai 4,872
4 Surat Thani 4,008
5 Central Investigation Bureau (CIB) By region of The Royal Thai  Police Departmen 2,786
6 Chon Buri 2,417
7 Nakhon Si Thammarat 2,272
8 Phra Nakhon Si Ayutthaya 1,866
9 Nonthaburi 1,433
10 Pathum Thani 1,349
  Whole Kingdom 110,685
Souce :  Royal Thai Police
Compiled by : Statistical Forecasting Bureau,  National Statistical Office