| population | |
| Amphoe Buntharik | 85209 |
| Amphoe Det Udom | 152723 |
| Amphoe Don Mot Daeng | 24898 |
| Amphoe Khemmarat | 69330 |
| Amphoe Khong Chiam | 30983 |
| Amphoe Khueang Nai | 98584 |
| Amphoe Kut Khaopun | 41044 |
| Amphoe Lao Suea Kok | 25062 |
| Amphoe Muang Sam Sip | 82071 |
| population | |
| Amphoe Mueang Ubon Ratchathani | 243154 |
| Amphoe Na Chaluai | 51940 |
| Amphoe Na Tan | 34808 |
| Amphoe Na Yia | 22813 |
| Amphoe Nam Khun | 30327 |
| Amphoe Nam Yuen | 61835 |
| Amphoe Phibun Mangsahan | 120296 |
| Amphoe Pho Sai | 40803 |
| Amphoe Samrong | 51784 |
| population | |
| Amphoe Sawang Wirawong | 26035 |
| Amphoe Si Mueang Mai | 63956 |
| Amphoe Sirindhorn | 48825 |
| Amphoe Tan Sum | 31097 |
| Amphoe Thung Si Udom | 24379 |
| Amphoe Trakan Phuet Phon | 118498 |
| Amphoe Warin Chamrap | 166340 |
 | Ubon Ratchathani Airport | ~ 33.19 km |
 | Pakse International Airport | ~ 66.05 km |
| Saravane Airport | ~ 146.36 km |
 | Preah Vinhear Airport | ~ 157.85 km |
| Savannakhet Airport | ~ 160.56 km |
| Surin Airport | ~ 182.25 km |
| Roi Et Airport | ~ 182.75 km |
| Stung Treng Airport | ~ 203.46 km |
| Buri Ram Airport | ~ 205.47 km |
