Every year, on the 3rd Tuesday of the month of June, the community of Waterloo joins together to celebrate our sister city status with Porta Westfalica, Germany.

The Porta Westfalica Festival began in 1981 after Sister Cities, Portaloo was founded in the fall of 1980. The event includes a parade, German music, food, and beverages, booths, and bounce houses for children. The Waterloo German Band and Waterloo Muncipal Band perform throughout the evening.