World Inequality Database (WID.world)

Name: World Inequality Database (WID.world)
Creator: World Inequality Database (WID.world)
License: https://creativecommons.org/licenses/by-nc-sa/4.0/

Open · redistributedcc-by-nc-sa-4.0-widInequality & Poverty

Redistributable. This source is served as canonical Parquet under the license below, with attribution and provenance preserved.

Coverage

Series catalogued

2,465,197

Licensing & provenance

License: cc-by-nc-sa-4.0-wid
License URL: https://creativecommons.org/licenses/by-nc-sa/4.0/
Required attribution: Source: World Inequality Database (WID.world). Licensed CC BY-NC-SA 4.0 — non-commercial use only, attribution required, derivatives must be shared alike. Re-hosted with the written permission of WID.world (2026-07-27) for educational use.
Redistribution: Permitted (served here)
Commercial use: Restricted / no
Modification: Permitted
Provider homepage: https://wid.world
Provider terms: https://creativecommons.org/licenses/by-nc-sa/4.0/

Access & mirrors

Download: Select & download wid series as CSV →
API: Get a free API key, then GET /v1/series/<id>.csv
Canonical landing: https://econdatalibrary.com/wid
Update cadence: annual
Automated refresh: live — this database is on the daily update run
Update strategy: bulk snapshot if changed
Storage layout: per-country parquet: data/clean_full/wid/<CODE>.parquet (119 present; series_key=WID:{variable}:{percentile}:{age}:{pop}:{country} / obs_date / value). PLUS a legacy single data/clean_full/wid/wid.parquet (~328 MB) that current main() never writes. Side-car _wid_log.txt.

Full description

World Inequality Database (WID) — income & wealth inequality, 200+ countries, 1820–present. License: CC BY 4.0 Source: https://wid.world/data/ No API key required. Coverage: * Pre-tax and post-tax income shares (top 1%, top 10%, bottom 50%) * Wealth shares and averages * National income, GDP, population * Gini coefficients * All countries + US states + German states + regions * ~1820-present (varies by country) Bulk download: https://wid.world/bulk_download/WID_data_{ISO}.csv Format: country;variable;percentile;year;value;age;pop Run: python jobs/ingest_wid.py

Structured metadata

schema.org/Dataset (Google Dataset Search)

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  "@type": "Dataset",
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  "description": "World Inequality Database — distributional national accounts. World Inequality Database (WID.world). 2,465,197 series. Free download.",
  "url": "https://econdatalibrary.com/wid",
  "identifier": "wid",
  "isAccessibleForFree": true,
  "publisher": {
    "@type": "Organization",
    "name": "Econ Data Library",
    "url": "https://econdatalibrary.com"
  },
  "includedInDataCatalog": {
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  "creditText": "Source: World Inequality Database (WID.world). Licensed CC BY-NC-SA 4.0 — non-commercial use only, attribution required, derivatives must be shared alike. Re-hosted with the written permission of WID.world (2026-07-27) for educational use.",
  "sameAs": [
    "https://huggingface.co/datasets/econdatalibrary-wid",
    "https://zenodo.org/communities/econdatalibrary"
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  "distribution": [
    {
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}

Croissant (ML-ready, schema.org JSON-LD)

{
  "@context": {
    "@language": "en",
    "@vocab": "https://schema.org/",
    "cr": "http://mlcommons.org/croissant/",
    "data": {
      "@id": "cr:data",
      "@type": "@json"
    },
    "dataType": {
      "@id": "cr:dataType",
      "@type": "@vocab"
    },
    "sc": "https://schema.org/",
    "conformsTo": "dct:conformsTo",
    "dct": "http://purl.org/dc/terms/"
  },
  "@type": "sc:Dataset",
  "conformsTo": "http://mlcommons.org/croissant/1.0",
  "name": "wid",
  "description": "World Inequality Database — distributional national accounts. World Inequality Database (WID.world). 2,465,197 series. Free download.",
  "url": "https://econdatalibrary.com/wid",
  "creator": {
    "@type": "sc:Organization",
    "name": "World Inequality Database (WID.world)",
    "url": "https://wid.world"
  },
  "publisher": {
    "@type": "sc:Organization",
    "name": "Econ Data Library",
    "url": "https://econdatalibrary.com"
  },
  "license": "https://creativecommons.org/licenses/by-nc-sa/4.0/",
  "keywords": [
    "Inequality & Poverty"
  ],
  "distribution": [
    {
      "@type": "cr:FileObject",
      "@id": "wid-csv",
      "name": "wid-csv",
      "description": "Per-series CSV, downloadable with a free API key.",
      "contentUrl": "https://econdatalibrary.com/download.html?source=wid",
      "encodingFormat": "text/csv"
    }
  ]
}

Part of the Econ Data Library catalog · metadata generated 2026-08-02 from the central registry · browse all datasets