Data Sources & Methodology

Facts About Nations aggregates authoritative data from trusted international organizations to provide comprehensive, up-to-date information about every nation on Earth.

Primary Data Sources
Our core datasets are sourced from the following international organizations
World Bank Open Data

Economic indicators including GDP, GDP per capita, inflation rates, unemployment rates, trade balances, and development metrics. Updated quarterly.

United Nations Data

Demographic data, population statistics, urbanization rates, and social development indicators. Comprehensive coverage of all UN member and observer states.

World Health Organization (WHO)

Health indicators including life expectancy, infant mortality rates, healthcare access, and disease prevalence data.

REST Countries API

Basic country information including flags, capitals, regions, languages, currencies, and geographic coordinates.

Transparency International

Corruption Perception Index (CPI) measuring perceived levels of public sector corruption in countries worldwide.

Economist Intelligence Unit (EIU)

Democracy Index measuring the state of democracy across electoral process, civil liberties, functioning of government, political participation, and political culture.

Data Collection & Processing Methodology

1. Data Aggregation

We systematically collect data from official APIs and public datasets provided by international organizations. Data is fetched automatically and stored in our database for fast access.

2. Data Validation

All incoming data undergoes validation checks to ensure consistency, accuracy, and completeness. Outliers and anomalies are flagged for manual review.

3. Update Frequency

Economic indicators are updated quarterly, demographic data annually, and basic country information is refreshed monthly. Each data point includes a timestamp showing when it was last updated.

4. Data Presentation

We present data in its original form without interpretation or editorial bias. Missing data is clearly marked as "N/A" rather than estimated or interpolated.

5. Historical Data

Where available, we maintain historical time-series data to enable trend analysis and year-over-year comparisons. Historical data retention varies by indicator type and source availability.

Data Limitations & Disclaimers

While we strive for accuracy and completeness, users should be aware of the following limitations:

  • Data Availability: Not all indicators are available for all countries. Developing nations and territories may have limited data coverage.
  • Reporting Delays: Official statistics may be published months or years after the reference period. Recent data may be provisional and subject to revision.
  • Methodology Changes: Source organizations occasionally revise their data collection methodologies, which may affect historical comparability.
  • Political Considerations: Some countries may not report certain indicators or may report data that does not reflect independent verification.
  • Third-Party Sources: We aggregate data from external sources and cannot guarantee the absolute accuracy of information provided by those organizations.

For critical decisions or academic research, we recommend consulting the original source data directly and reviewing the methodology documentation provided by each organization.

Attribution & Licensing

Facts About Nations is a data aggregation platform. All data remains the property of the original source organizations and is subject to their respective terms of use and licensing agreements. We provide attribution links to source organizations on every country profile page.

If you notice any data discrepancies or have questions about our methodology, please contact us at [email protected]