The routing number for People's United Bank can vary depending on the state in which your account was opened. Generally, each state has its own unique routing number for financial institutions, and People's United Bank has several numbers for different locations. For example, the routing number for accounts opened in Connecticut is typically different from those opened in New York or Massachusetts. A reliable method to find the correct routing number is to check your account statements, the bottom of your checks, or to visit the official People's United Bank website. There, you can find accurate and updated information based on your specific location. It is always advisable to ensure you have the correct routing number especially for wire transfers or electronic payments.