The England Women's U23 side were beaten in the opening game of their four-nation tournament at the University of Warwick on Wednesday.
Ellii Reed put the United States ahead and goals from Christen Press either side of half-time added gloss to the victory.
In the day's other game, Sweden were 1-0 winners over Norway. Brent Hills' side will next take on the Swedes on Friday.
England line-up: Carly Telford, Mel Sutcliffe, Claire Rafferty, Danielle Buet (Elizabeth Edwards, 85), Fern Whelan, Sophie Bradley (c), Kate Longhurst (Gemma Davison, 46), Stephanie Houghton, Natasha Dowie, Brooke Chaplen (Sophie Walton, 73), Danielle Bird.
Substitutes not used: Marie Hourihan, Sarah Kempson, Rhiannon Roberts, Jemma Rose


