The Niagara & District Junior C Hockey League was formed in 1974. Although corresponding with the founding of the Golden Horseshoe Junior Hockey League, the Niagara District league was actually founded by removing the Niagara-area teams from the Central Junior C Hockey League and placing them in the new Niagara District league. The Central league is now known as the Western Ontario Junior C Hockey League.
In 1984, the entire Western Division of the league broke away and formed the Southwestern Junior C Hockey League. The league only lasted one year before it was reabsorbed by the Niagara & District League. The Southwestern league comprised teams from Norwich, Woodstock, Tillsonburg, Simcoe, and New Hamburg. Local publications, like the Simcoe Reformer, did not recognize the Southwestern League as anything but the Western Division of the Niagara District league.
In the Spring of 2013, Junior C hockey in Ontario had its first major realignment since the creation of the Georgian Mid-Ontario Junior C Hockey League in 1994. The 27 teams between the Niagara & District League and the Southern Ontario Junior Hockey League were reshuffled. The Niagara & District League jumped from 12 to 18 teams, losing the Aylmer Spitfires, but gaining the Ayr Centennials, Burford Bulldogs, Delhi Travellers, Hagersville Hawks, Norfolk Rebels (Port Dover), Tavistock Braves, and Wellesley Applejacks.[1] Not long after, the OHA split off the Western Division of the Niagara League to form the new Midwestern Junior C Hockey League, taking long time Niagara League members the Woodstock Navy-Vets, New Hamburg Firebirds, Norwich Merchants, and Paris Mounties with them.
Niagara District Junior C Champions are bolded. In a year that there is no bolded champion, there seems to have not been an overall Niagara District Champion and both division entered teams against different opponents at the provincial level. In 1985, the Western Division was known as the "Southwestern Junior C Hockey League".
Please note: Through much of the 1980s and 1990s, the divisions of the league were semi-autonomous and would often have different numbers of games in their schedules. The winners, in that case, are chosen by winning percentage. The 2001-02 ended up with the two division leaders with exact records, therefore a tie.