📌 The Canadian federal electoral district of St. Catharines was contested in the 2004 election.

🏆 Walt Lastewka, the Liberal candidate, won the riding with 21,005 votes (40.4% of the vote).

🥈 The runner-up was Leo Bonomi (Conservative) with 18,045 votes (34.7%), defeated by a margin of 2,960 votes.

📊 Other notable candidates: Ted Mouradian (N.D.P., 19%).