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Ethnic Power Relations (EPR) Dataset Family

FreeNon-commercial onlyauth: noneCC-BY-NC-SA-4.0#osint#conflict-data#ethnicity#historical-data#non-commercial#files✓ verified Nov 9, 2026

Ethnic Power Relations (EPR) Dataset Family

ETH Zürich's dataset family on politically relevant ethnic groups: their access to state power, settlement patterns, rebel-organisation links, transborder ethnic kin and intraethnic cleavages. The current (2021) version downloads as CSV, tab-delimited, JSON, Excel, Excel 2007, Shapefile and SQL, with a GROW up web portal also serving research-ready country-year and group-year formats. No key is needed.

Required Attribution:

Required: cite Vogt, Bormann, Rüegger, Cederman, Hunziker, Girardin (2015), "Integrating Data on Ethnicity, Geography, and Conflict: The Ethnic Power Relations Data Set Family," Journal of Conflict Resolution 59(7): 1327-42; EPR-ED, EPR-ER and earlier EPR/GeoEPR/ACD2EPR versions have their own listed citations on the provider page.

Coverage

EPR Core identifies all politically relevant ethnic groups and their access to state power in every country from 1946 to 2021, with annual data on over 800 groups coding each group's degree of executive-level state power. Linked datasets cover settlement-pattern polygons (GeoEPR), links to conflicts in the UCDP/PRIO Armed Conflict Dataset (ACD2EPR), transnational ethnic kin (EPR-TEK), linguistic, religious and racial cleavages (EPR-ED), and refugee ethnic composition for 1975-2020 (EPR-ER). The 2021 version was released 2021-06-08. Update frequency and next release: Not stated.

Verdict

Use this for research on which ethnic groups hold state power, where they are settled, and their links to civil conflict and refugee flows, across every country from 1946 to 2021. The licence page says: "EPR Dataset Family by Vogt, Bormann, Rüegger, Cederman, Hunziker, Girardin is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License." Commercial use is not permitted under that licence. Citation is requested, with separate references listed on the provider page for the core family, EPR-ED, EPR-ER and earlier EPR/GeoEPR/ACD2EPR versions. Signal Lab links only.

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