| | 2010 | | | Rank | Provinces | Employee | | 1 | Chiang Mai | 186,604 | | 2 | Nakhon Si Thammarat | 147,603 | | 3 | Si Sa Ket | 138,760 | | 4 | Chon Buri | 135,348 | | 5 | Ubon Ratchathani | 125,969 | | 6 | Udon Thani | 114,574 | | 7 | Trang | 75,978 | | 8 | Pathum Thani | 75,151 | | 9 | Nakhon Sawan | 73,623 | | 10 | Kalasin | 73,552 | | | Whole Kingdom | 2,022,609 |
| | | 2011 | | | Rank | Provinces | Employee | | 1 | Bangkok | 1,398,477 | | 2 | Nakhon Ratchasima | 218,323 | | 3 | Nonthaburi | 216,122 | | 4 | Chiang Mai | 212,495 | | 5 | Nakhon Si Thammarat | 195,177 | | 6 | Songkhla | 188,981 | | 7 | Samut Prakan | 159,532 | | 8 | Ubon Ratchathani | 142,607 | | 9 | Khon Kaen | 127,620 | | 10 | Si Sa Ket | 125,695 | | | Whole Kingdom | 6,491,058 |
| | | 2012 | | | Rank | Provinces | Employee | | 1 | Bangkok | 1,511,056 | | 2 | Nakhon Ratchasima | 222,444 | | 3 | Samut Prakan | 212,671 | | 4 | Nonthaburi | 211,925 | | 5 | Songkhla | 198,110 | | 6 | Chon Buri | 174,431 | | 7 | Nakhon Si Thammarat | 171,140 | | 8 | Chiang Mai | 163,673 | | 9 | Pathum Thani | 136,048 | | 10 | Nakhon Pathom | 134,824 | | | Whole Kingdom | 6,606,114 |
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