Under the 2022 Canadian federal electoral redistribution the riding will be renamed Niagara South.

[2] Ethnic groups: 83.0% White, 5.1% Indigenous, 3.1% Black, 2.5% South Asian, 1.3% Chinese, 1.2% Latin American, 1.0% Filipino Languages: 81.0% English, 4.5% French, 2.2% Italian, 1.1% Spanish Religions: 60.5% Christian (32.7% Catholic, 5.3% Anglican, 3.5% United Church, 1.8% Presbyterian, 1.3% Baptist, 1.2% Lutheran, 1.1% Pentecostal, 13.6% Other), 2.1% Muslim, 35.2% None Median income: $37,600 (2020) Average income: $46,040 (2020) Niagara Centre consists of the cities of Welland, Thorold, and Port Colborne, and the part of the City of St. Catharines lying south of a line drawn from the southern city limit north along First Louth St, east along St. Paul Street West, northeast along St. Paul Crescent, east and south along Twelve Mile Creek, and east along Glendale Avenue to the eastern city limit.

In 1952, it was redefined to consist of the townships of Pelham, Thorold, Crowland, Humberstone and Wainfleet, including the city of Welland and the towns of Port Colborne, Thorold, Fonthill and Humberstone.

The electoral district was abolished in 2003 when it was redistributed between Niagara West—Glanbrook, St. Catharines and Welland ridings.

Welland was abolished in 2013, and was largely replaced by a new riding named Niagara Centre.