geography isn't really a good indicator most rich countries are the countries which are most heavily industrialized or have oil. A few are small economies that have tourism or heavy finance sectors/ports. In economics its long understood that investment (acquisition of capital resources or industrialized resources) is tied to saving rates in developing stage of the economy which means a rapidly developing finance sector. Poor countries have the problem that they don't have the money to save in the first place.
America, Canada, Western Europe + East Asia (Japan, S. Korea, Taiwan, Singapore, Hong Kong, Brunei, macau) + Australia + New Zealand Kuwait + Equitorial Guinea + Bermuda + United Erab Emirates+ Israel+ The richest countries in the old soviet (Czech republic, Slovenia)
All of these coutnries have Per capita G.D.P.s that are at least 25K and most closer to 30-40K
High Middle Income Countries G.D.P per Capita is 10,000$ to 20,000$.
Most of Eastern Europe (Poland, Estonia, Russia ect.) + Most of Latin America (Brasil Argentina, Chile) + most middle east countries west of afghanistan/khajistan. (Saudi Arabia, Lebanon, Turkey, Iran) South Africa, Libya, Botswana, Malaysia.
Low Middle incom 7000$-10,000$ range
China, Most of South East Asia (singapore being rich, and Malaysia being high middle income), Jamaica, and Cuba. The worse parts of latin america
Fairly Poor Countries below 6500$.
Iraq, India, Indonesia, Vietnam Random places in latin america. Some parts of Eastern Europe
Poorest Countries Below 2500$ ( Average person lives on under 5$.)
Pakistan, Afghanistan, Most of Africa, Bangladesh.