In Group C, South Korea will face Nigeria on Aug. 10 in Moncton and Mexico on Aug. 14 in Toronto.
South Korea finished third at the previous U-20 Women's World Cup in 2010 in Germany.
The South Korean team left for Canada on Sunday and will play its final pre-U-20 Women's World Cup match against Finland on Aug. 2.
The tournament opens on Aug. 5.