AP Human Geography 2015-10-19 Chapter 2 Section 1 Population I. KEY ISSUE 1 Where Is the World's Population Distributed? A. Population Concentrations ? Two-thirds of the world's inhabitants are clustered in four regions?East Asia, South Asia, Southeast Asia, and Western Europe. ? The four regions display some similarities. Most of the people in these regions live near an ocean or near a river with easy access to an ocean, rather than in the interior of major Landmasses. 1. East Asia ? One-fifth of the world's people live in East Asia. ? The region, bordering the Pacific Ocean, includes eastern China, the islands of Japan, the Korean peninsula, and the island of Taiwan. ? Five-sixths of the people in this concentration live in the People's Republic of