Communes du district
| Commune | NPA | Habitants |
|---|---|---|
| Abtwil | 5646 | 1 120 |
| Aristau | 5628 +1 | 1 603 |
| Auw | 5644 +4 | 2 301 |
| Beinwil (Freiamt) | 5637 | 1 309 |
| Besenbüren | 5627 | 637 |
| Bettwil | 5618 +1 | 716 |
| Boswil | 5623 +2 | 3 114 |
| Bünzen | 5624 | 1 245 |
| Buttwil | 5632 | 1 297 |
| Dietwil | 6042 +1 | 1 417 |
| Geltwil | 5637 | 241 |
| Kallern | 5625 | 422 |
| Merenschwand | 5634 +1 | 3 893 |
| Mühlau | 5642 | 1 347 |
| Muri (AG) | 5630 | 8 712 |
| Oberrüti | 5647 | 1 630 |
| Rottenschwil | 8919 | 960 |
| Sins | 5643 +3 | 4 491 |
| Waltenschwil | 5622 | 3 186 |