1. The first St. Patrick's Day Parade in Wisconsin took place in Milwaukee in 1843. The parade has been held annually ever since, making it one of the longest-running St. Patrick's Day parades in the United States.

2. The Irish Cultural and Heritage Center in Milwaukee is housed in a former 1888 neo-gothic Catholic church. The building was purchased by the Irish community in 1990 and turned into a center for promoting Irish culture and heritage in the city.

3. The Milwaukee Irish Fest is the largest celebration of Irish heritage in North America. Held annually in August, the festival features music, dance, food, and cultural exhibits. In 2019, the festival drew over 100,000 people.

4. The Green Bay Packers, one of Wisconsin's most beloved sports teams, have a connection to St. Patrick's Day. The team was founded on August 11, 1919, by Curly Lambeau and George Calhoun in the Hupmobile showroom of the Green Bay Press-Gazette on Cherry Street. Lambeau was of French-Canadian and Irish ancestry and named the team after the Indian Packing Company of Green Bay, where he worked and played football.

5. In 1955, the small town of New Dublin, Wisconsin, began hosting an annual St. Patrick's Day celebration that has grown into a major event. The St. Patrick's Day Parade and Irish Festival draw visitors from around the state and feature live music, food, and family-friendly activities. New Dublin is also home to the popular McClanahan's Irish Pub and Grill.