Niagara Falls is a city in the Canadian province of Ontario, adjacent to Niagara Falls. As of the 2021 census, the city had a population of 94,415. The city is located on the Niagara Peninsula along the western bank of the Niagara River, which forms part of the Canada–United States border, with the other side being the twin city of Niagara Falls, New York. Niagara Falls is within the Regional Municipality of Niagara and a part of the St. Catharines - Niagara Census Metropolitan Area (CMA). Tourism is a major part of the city's economy: its skyline is comprised of multiple high-rise hotels and observation towers that overlook the waterfalls and adjacent parkland. Souvenir shops, arcades, museums, amusement rides, indoor water parks, casinos, theatres and a convention centre are located nearby in the city's large tourist area. Other parts of the city include historic sites from the War of 1812, parks, golf courses, commercial spaces, and residential neighbourhoods.