Ten provinces with highest insured persens in social security article 33: 2003 - 2005
  2003  
Rank Provinces Number
1 Bangkok 2,641,480
2 Samut Prakan 674,393
3 Chon Buri 371,585
4 Samut Sakhon 319,159
5 Pathum Thani 302,982
6 Phra Nakhon Si Ayutthaya 248,939
7 Rayong 191,152
8 Nakhon Pathom 183,278
9 Nonthaburi 176,030
10 Nakhon Ratchasima 166,407
  Whole Kingdom 7,434,237
  2004  
Rank Provinces Number
1 Bangkok 2,762,888
2 Samut Prakan 699,966
3 Chon Buri 413,361
4 Samut Sakhon 327,944
5 Pathum Thani 326,573
6 Phra Nakhon Si Ayutthaya 280,236
7 Rayong 213,451
8 Nakhon Pathom 189,043
9 Nonthaburi 186,583
10 Nakhon Ratchasima 177,740
  Whole Kingdom 7,831,463
  2005  
Rank Provinces Number
1 Bangkok 2,884,459
2 Samut Prakan 708,838
3 Chon Buri 446,930
4 Pathum Thani 362,698
5 Samut Sakhon 336,149
6 Phra Nakhon Si Ayutthaya 301,258
7 Rayong 244,384
8 Nonthaburi 197,632
9 Nakhon Ratchasima 192,628
10 Nakhon Pathom 191,666
  Whole Kingdom 8,225,477
Source : Social Security Office, Ministry of Labour
Compiled by : Statistical Forecasting Bureau,  National Statistical Office