This department has 391 communes.
| Code | Name | Population |
|---|---|---|
| 01053 | Bourg-en-Bresse | 42 372 |
| 01283 | Oyonnax | 22 480 |
| 01033 | Valserhône | 16 712 |
| 01004 | Ambérieu-en-Bugey | 15 934 |
| 01354 | Saint-Genis-Pouilly | 14 432 |
This department has 24 cantons.
| Code | Name | Central office |
|---|---|---|
| 0101 | Ambérieu-en-Bugey | Ambérieu-en-Bugey |
| 0102 | Attignat | Attignat |
| 0103 | Valserhône | Valserhône |
| 0104 | Belley | Belley |
| 0105 | Bourg-en-Bresse-1 | Bourg-en-Bresse |
This department has 4 departmental arrondissements.
| Code | Name | Administrative seat |
|---|---|---|
| 011 | Belley | Belley |
| 012 | Bourg-en-Bresse | Bourg-en-Bresse |
| 013 | Gex | Gex |
| 014 | Nantua | Nantua |