| population | |
| Amphoe Ban Pho | 45252 |
| Amphoe Bang Khla | 45394 |
| Amphoe Bang Nam Priao | 77252 |
| Amphoe Bang Pakong | 115534 |
| population | |
| Amphoe Khlong Khuean | 10802 |
| Amphoe Mueang Chachoengsao | 184922 |
| Amphoe Phanom Sarakham | 77569 |
| Amphoe Plaeng Yao | 50286 |
| population | |
| Amphoe Ratchasan | 10649 |
| Amphoe Sanam Chai Khet | 61501 |
| Amphoe Tha Takiap | 36441 |
 | Suvarnabhumi Airport | ~ 72.57 km |
| Don Mueang International Airport | ~ 92.88 km |
| U-Tapao International Airport | ~ 114.77 km |
| Sa Pran Nak Airport | ~ 168.64 km |
| Kamphaeng Saen Airport | ~ 170.13 km |
| Nakhon Ratchasima Airport | ~ 175.56 km |
| Trat Airport | ~ 179.75 km |
| Hua Hin Airport | ~ 193.41 km |
 | Battambang Airport | ~ 204.39 km |
