Conversation so far:
what are the 12 district in hunger games
The Hunger Games trilogy takes place in the nation of Panem which consists of a wealthy Capitol city surrounded by twelve poorer districts ruled by the Capitol.
is there a 13th district in the hunger games
The Hunger Games' District 13 was supposedly bombed and destroyed but in Mockingjay, it is confirmed that District 13 had become an underground district.

Question: which district is the least poor of the disctricts
Self-contained rewrite: which district is the least poor of the 12 districts in the hunger games