- Afrobarometer
- Americas Barometer
- Asian Barometer
- Cingranelli-Richards (CIRI) Human Rights Data Project*
- Civicus*
- Cross-National Time-Series Data Archive
- Demographic and Health Surveys*
- Economist Intelligence Unit
- Enterprise Survey World Bank
- European Social Survey
- Fund for Peace
- John Hopkins Comparative Nonprofit Sector Project*
- International Country Risk Guide
- International Crime Victims Survey*
- International Labour Organisation
- International Social Survey*
- International Telecommunication Union
- Latinobarometer
- London School of Economics Annual Civil Society Yearbook
- Minorities at Risk*
- Nature Conservancy*
- OECD Factbook
- OECD SIGI index
- Sustainable Governance Indicators
- UNESCO
- United Nations Office on Drugs and Crime
- Uppsala Conflict Data Program
- World Development Indicators*
- World Economic Forum Gender Gap Report
- World Happiness Report – Gallup
- World Health Organization
- World Values Survey
Note that sources marked with * have not been used to update the 2020 indices.