A sortable list of Thailand cities by population, list can be sorted by the name of the city, population, area or region if such available.
| Name | Population | Area, km2 |
|---|---|---|
| Bangkok | 5,676,648 | 1568.74 |
| Samut Prakan | 1,351,479 | 1004.09 |
| Nonthaburi | 255,671 | 38.9 |
| Pak Kret | 184,501 | 36.04 |
| Hat Yai | 159,130 | 21 |
| Chaophraya Surasak | 133,000 | 276.98 |
| Chiang Mai | 132,634 | 40 |
| Surat Thani | 130,703 | 68.97 |
| Udon Thani | 130,274 | 47.7 |
| Nakhon Ratchasima | 128,217 | 37.5 |
| Khon Kaen | 115,928 | 46 |
| Pattaya | 115,840 | n/a |
| Nakhon Si Thammarat | 106,322 | 22.56 |
| Nakhon Sawan | 86,439 | 27.87 |
| Rangsit | 79,319 | 20.8 |
| Ubon Ratchathani | 79,023 | 29.04 |
| Nakhon Pathom | 78,780 | 19.85 |
| Laem Chabang | 77,798 | 88.59 |
| Phuket | 77,610 | 12 |
| Phitsanulok | 70,871 | 18.3 |
| Chiang Rai | 70,610 | 60.85 |
| Songkhla | 63,834 | 9.27 |
| Ko Samui | 62,500 | n/a |
| Rayong | 61,902 | 16.95 |
| Saraburi | 61,750 | n/a |
| Yala | 61,250 | 19 |
| Trang | 60,591 | 14.77 |
| Samut Sakhon | 60,103 | 10.33 |
| Hua Hin | 59,369 | 86.36 |
| Lampang | 55,044 | 22.17 |
| Prachuap Khiri Khan | 54,018 | n/a |
| Sakon Nakhon | 53,618 | 54.54 |
| Phra Nakhon Si Ayutthaya | 52,940 | 14.84 |
| Maha Sarakham | 52,866 | 24.14 |
| Om Noi | 52,457 | 30.4 |
| Nong Khai | 48,274 | 31.15 |
| Sisaket | 42,405 | 36.66 |
| Surin | 39,728 | 11.39 |
| Chachoengsao | 39,570 | n/a |
| Chaiyaphum | 36,923 | 30.78 |
| Ratchaburi | 36,339 | 8.7 |
| Roi Et | 35,219 | 11.63 |
| Phatthalung | 35,039 | n/a |
| Kalasin | 34,437 | 16.96 |
| Uttaradit | 33,930 | n/a |
| Chumphon | 33,516 | 21.1 |
| Mukdahan | 33,102 | n/a |
| Mae Sot | 31,530 | 27.2 |
| Krabi | 30,499 | n/a |
| Chonburi | 29,961 | 4.57 |
| Kamphaeng Phet | 29,178 | n/a |
| Samut Songkhram | 28,493 | n/a |
| Buriram | 27,150 | 6 |
| Nakhon Phanom | 26,437 | n/a |
| Suphan Buri | 26,164 | n/a |
| Amnat Charoen | 25,858 | 38 |
| Kanchanaburi | 25,651 | n/a |
| Lopburi | 24,166 | n/a |
| Chanthaburi | 23,835 | n/a |
| Phetchaburi | 23,235 | 5.4 |
| Pathum Thani | 22,948 | n/a |
| Loei | 22,339 | n/a |
| Phichit | 22,299 | n/a |
| Phetchabun | 22,121 | n/a |
| Nong Bua Lam Phu | 21,528 | 39.5 |
| Nan | 20,595 | n/a |
| Yasothon | 20,414 | n/a |
| Sa Kaeo | 17,864 | n/a |
| Sing Buri | 17,843 | n/a |
| Prachinburi | 17,768 | n/a |
| Tak | 17,565 | 7.27 |
| Phayao | 17,467 | n/a |
| Phrae | 16,668 | n/a |
| Nakhon Nayok | 16,195 | n/a |
| Ranong | 16,125 | n/a |
| Sukhothai Thani | 15,618 | 118.52 |
| Uthai Thani | 15,434 | n/a |
| Ang Thong | 13,277 | 6.19 |
| Lamphun | 12,595 | n/a |
| Chai Nat | 12,541 | n/a |
| Trat | 10,413 | n/a |
| Phang Nga | 10,412 | n/a |
| Mae Hong Son | 6,526 | n/a |
| Bueng Kan | 4,494 | n/a |