Based on the most recent World Bank/IMF data (nominal GDP per capita, USD), the highest-income economies in Southern and Eastern Asia are:
| Rank | Country | Per Capita Income (USD) | Notes |
|---|---|---|---|
| 1 | Singapore | ~$82,800 (2023) | Global finance/logistics hub; tiny land, massive productivity. |
| 2 | Japan | ~$33,950 (2023) | 3rd largest economy; aging population, high tech. |
| 3 | South Korea | ~$33,150 (2023) | Export-led; semiconductors, autos, shipbuilding. |
| 4 | Taiwan | ~$32,600 (2023) | Semiconductor dominance (TSMC); advanced manufacturing. |
| 5 | Brunei | ~$31,800 (2023) | Oil/gas wealth; small population (~450K). |
World Bank World Development Indicators, IMF World Economic Outlook (2023/2024). Income levels fluctuate with exchange rates, commodity prices, and growth cycles.