Idaho: 79% Lottery fans in Idaho enjoy one of the most significant winning percentages. The Idaho state lotteries pay back an impressive 79% of all the money paid into allslot games. The amount of money paid out is a huge factor when determining the best states for playing the lottery. Idaho beats every other state severely. That is partly attributed to the low overhead associated with the Idaho lottery. Spending less on marketing campaigns and material means more money for prizes.