Auressio is a village and former municipality in the canton of Ticino, Switzerland.
In 2001 the municipality was merged with the other, neighboring municipalities Berzona and Loco to form a new and larger municipality Isorno.[1]
The historical population is given in the following table:
| Year | Population Auressio. |
|---|---|
| 1795 | 240 |
| 1808 | 273 |
| 1850 | 198 |
| 1900 | 164 |
| 1950 | 76 |
| 2000 | 71 |