41°35′24″N 73°03′05″W / 41.5899°N 73.0514°W Waterville is a neighborhood of the city of Waterbury, Connecticut. It was formerly known as Pine Hole and Haydensville. It has been home to industrial and manufacturing facilities from the 1960s onward. The ethnic makeup of Waterville consists of Italian, Irish, French and Latin American. This section of Waterbury contains two parks and the main office of the city's Department of Transportation.