The Americans out-shot the Canadians 27-8 but didn't find the net until Reilyn Turner, a 60th minute sub, headed home Katie Wiesner's 65th-minute corner kick.
“I’m really proud of the team performance and result today," said U.S. coach Mark Carr. "It’s never an easy game against Canada and I thought we took initiative, played on the front foot and created a lot of quality chances. But we have to do better with our finishing.
“Overall, our first two goals were to qualify for the semifinals and top the group. We accomplished both today. Our focus now shifts to Haiti. ... We have some familiarity in Haiti, but we know they will be fighting for a World Cup spot. It’s a new game, a one-off game, and we will be ready to do everything to qualify.”
Haiti tied Mexico, 1-1, in its final group game.
• The So Cal Blues' Turner was playing just her second international game for the U-17s. She also scored in her debut, against Bermuda two days earlier.
• Carr made nine changes to the starting lineup that faced Bermuda with Natalia Staude and Makenna Morris the only holdovers.
June 8 in Bradenton, Fla.
USA 1 Canada 0. Goal: Turner (Wiesner) 65.
USA -- Anderson; DellaPeruta (Turner, 60), Staude, Wesley, Morris, Jones, Bebar, Bethune (Doms, 69), Meza, Fontes (Ordoñez, 69), Wiesner.
Canada -- Karpenko, Antoine, Young, Thurton, Huitema (Akindoju, 46), Scott, Novak, Cooke (Riviere, 63), Balata, Downing (Ladhani, 57), Vallerand.
Referee: Mirian León (El Salvador).