New London is a city in Outagamie and Waupaca counties Wisconsin, United States. Founded in 1851, the population was 7,295 at the 2010 census. Of this, 5,685 were in Waupaca County, and 1,640 were in Outagamie County. The city has an annual Saint Patrick's Day Parade, Irish Fest, and week-long festivities, when the city's name is changed to "New Dublin" for the week. In 2022, Killaloe, County Clare, Ireland became New London's sister city.