Niagara University is a private Catholic university in the Vincentian tradition in the census-designated place Niagara University, New York, in the town of Lewiston near Niagara Falls. It is run by the Congregation of the Mission and has approximately 3,300 undergraduate students in 50 academic programs. Approximately half of the students are resident…Niagara University is a private Catholic university in the Vincentian tradition in the census-designated place Niagara University, New York, in the town of Lewiston near Niagara Falls. It is run by the Congregation of the Mission and has approximately 3,300 undergraduate students in 50 academic programs. Approximately half of the students are residents while the other half commute from the surrounding area. The campus area was listed as a census-designated place in 2020 with a population of 940.