St. Patrick's Day is a day filled with fun. More than 100 parades are held across the US, the biggest being in New York City and Chicago. According to the International Business Times, New York City has over 2 million people in its parade while Chicago has around 1 million. According to WalletHub 60 percent of Americans plant to celebrate the holiday and 13 million pints of Guinness will be consumed worldwide. Not only that but WalletHub also states that $5.9 billion will be spent on St.