Bangladesh

57% of Bangladesh's population is illiterate. An infamous statistic is the number of children who do not attend school.

An excerpt from the article 23 facts about Bangladesh
For many children, education is a dream come true. It is the only way out of poverty. Many children do not go to school because they have to work to support the household budget. Many do not have the opportunity to go to school because of monsoon rains that hit the country, flooding 1/4 of the land.