How many countries have extradition treaties with Switzerland?

As of my last update in September 2021, Switzerland has extradition treaties with 138 countries. These treaties allow for the extradition of individuals who are wanted for criminal offenses committed in one country but are found in another country. However, it's important to note that extradition laws and regulations can change over time, so it is always best to consult with legal professionals for the most up-to-date information.