Wikipedia’s ENTRY on global poverty by country.
A map documenting MEGA-SLUMS
And a map of urban population living in slums BY COUNTRY
Wikipeda also explains that “The World Bank defines extreme poverty as living on less than US$ (PPP) 1 per day, and moderate poverty as less than $2 a day. It has been estimated that in 2001, 1.1 billion people had consumption levels below $1 a day and 2.7 billion lived on less than $2 a day. The proportion of the developing world’s population living in extreme economic poverty has fallen from 28 percent in 1990 to 21 percent in 2001. Much of the improvement has occurred in East and South Asia. In Sub-Saharan Africa GDP/capita shrank with 14 percent and extreme poverty increased from 41 percent in 1981 to 46 percent in 2001. Other regions have seen little or no change. In the early 1990s the transition economies of Europe and Central Asia experienced a sharp drop in income. Poverty rates rose to 6 percent at the end of the decade before beginning to recede.  There are various criticisms of these measurements.”