Cost of living in Portland, Oregon (United States) is 18% cheaper than in Aarau (Switzerland)
WARNING! This comparison is based on only a few data points. At this point it is only a guess. It is based on 2,648 prices entered by 365 different people.
For example, to keep the same standard of living that would require CHF 6,200 in Aarau you would need to make just about CHF 5,075 ($5,135) in Portland, Oregon.