So many good suggestions (Hunger Games, the Selection Trilogy, and the Uglies series) and a few to add to my future reading list. Also, I would add the Matched/Crossed/ Reached series and the Cinder/Scarlet/Cress series.
20+ dystopian teen books worth reading. These will keep fans of The Hunger Games and Divergent busy for a while!
If you can't get enough of Katniss, Peeta, and dystopian worlds, here are 7 book series for fans of The Hunger Games.