Data source & citation
SDG data is drawn from the Sustainable Development Report 2025 (SDR 2025), published by the UN Sustainable Development Solutions Network (SDSN). The report provides SDG Index scores, goal-level scores, and indicator-level scores for 166 countries, alongside spillover and SDG progress trend assessments.
Country group memberships (UN M49 regions, World Bank income groups, UN SDG groups, OECD DAC groups, WB FCS status) are sourced from the Country Classification Commons library and joined to SDR 2025 data by ISO3 code.
| Overall score | SDG Index score (0–100) — average of 17 goal scores, higher = better SDG performance |
|---|---|
| Goal scores | Goal 1–17 scores (0–100) derived from indicator-level data |
| Spillover index | Measures negative international spillovers; a low spillover score means a country's consumption patterns harm other countries' SDG progress |
| SDG progress | Trend score reflecting rate of change toward SDG targets |
| Edition | 2025 (data vintage 2023–2025 depending on indicator) |
| Country coverage | 166 countries |
| DOI | 10.25546/111909 |
| Data API | SDSN ArcGIS FeatureServer (live endpoint) |
Formal citation: Sachs, J.D., Lafortune, G., Fuller, G., and Drumm, E. (2025). Sustainable Development Report 2025. Paris: SDSN. DOI: 10.25546/111909
Why classification matters: The same SDG score tells different policy stories depending on whether you slice countries by UN regions, World Bank income classes, OECD DAC groups, FCS status, or SDG regional clusters. Classification choices are not cosmetic — they change conclusions, rankings, and peer comparison sets.
Metric explanation (from SDR2025 Codebook)
Overall vs Spillover
Bubble size is SDG progress, color shows selected classification group.