Browse all 217 countries
Per-country profiles with population, GDP, life expectancy, healthcare spending, education, and 50+ World Bank/WHO/OECD indicators.
Live Data Products & Research
Database-driven analyses of country-level economic, health, and demographic indicators, refreshed automatically as World Bank Open Data, the World Health Organization, and OECD Health Statistics update. According to the World Bank, its World Development Indicators draw on more than 1,400 series from official national sources; as of May 2026 every figure on these pages is generated live from that data across 217 countries, never hand-written. See our methodology for the full sourcing protocol.
What can you learn from PlainCountries research?
What this research covers
PlainCountries research analyzes World Bank, WHO, and OECD country indicators across 217 countries, 48 indicator series, and 175,328 datapoints, answering one comparative question per study from the live mirror.
- 217
- countries covered
- 48
- indicator series
- 175,328
- datapoints in extract
- 5
- published research studies
Studies below answer one comparative question each from the live World Bank/WHO/OECD mirror; they are descriptive statistics, not policy advice or investment guidance.
Country rankings
Sort all countries by GDP per capita, life expectancy, healthcare spending, physician density, education attainment, and other live indicators.
Country comparison tool
Side-by-side comparison of any two countries across 50+ economic, health, and demographic indicators — live from DB.
Original research
Data-driven analyses computed from the same live database that powers every country profile and ranking.
The GDP-per-Capita Gap Across World Economies
How wide is the spread between the richest and poorest reporting economies, and where does the bottom concentrate.
The Life Expectancy Gap Between Top and Bottom
The spread between the longest- and shortest-lived populations on record, and where it concentrates.
The Income Gradient in Life Expectancy
How average life expectancy changes across the World Bank's four income tiers.
The OECD Physician Density Gap
How wide the physician-supply spread runs across OECD-reporting countries, and why high spending doesn't guarantee a high physician count.
217 Countries and a Global Data Coverage Map
Where PlainCountries' World Bank, ILO, WHO, and OECD coverage concentrates by source, and where the gaps are.