Historical Index of Ethnic Fractionalization

Every year in one file, one row per country per year: ethnic-fractionalization-all-editions-nations-inquiry.csv

Every column in the newest file of Historical Index of Ethnic Fractionalization: what it holds, how it is stored, and its range.

Column	What it holds	Stored as	Range, 2013	Distinct	Empty	Spread
CountrycountryName	The country’s name, as this file spells it.	Text	—	156	0
ISO Codecountry_codeIdentifier	The ISO 3166-1 alpha-3 code, added by this site. Every table here joins on it.	Text · 3 letters	—	156	0
Ethnic fractionalization (0–1)ethnic_fractionalizationHeadline	The headline figure: Ethnic fractionalization index (0–1): the probability that two randomly drawn people belong to different ethnic groups.	Number · up to 3 decimals	0.019Japan0.889Liberiamiddle 0.444	148	0

Profiled from the newest file. Range: the lowest and highest value, with the country holding it when only one does. Spread: countries in ten equal steps from lowest to highest. Neither end is better. The values describe a shape, not a score.

The newest 12 of 69 years.

Not in this dataset · 69 places this site covers

Lenka Dražanová gives no figure for these in any year held here. It is the publisher’s choice of scope, and each place’s profile shows what is measured.

American SamoaAndorraAnguillaAntigua and BarbudaArubaBahamasBarbadosBelizeBermudaBritish Virgin IslandsBruneiCameroonCayman IslandsChannel IslandsCook IslandsCuraçaoDominicaEquatorial GuineaFaroe IslandsFranceFrench PolynesiaGibraltarGreenlandGrenadaGuamHong KongIcelandIndiaIsle of ManKiribatiKosovoLiechtensteinLuxembourgMacauMaldivesMaltaMarshall IslandsMicronesiaMonacoMontenegroMontserratMozambiqueNauruNew CaledoniaNiueNorthern CyprusNorthern Mariana IslandsPalauPalestinePapua New GuineaPuerto RicoSaint Kitts and NevisSaint LuciaSaint MartinSaint Vincent and the GrenadinesSamoaSan MarinoSão Tomé and PríncipeSeychellesSint MaartenSomalilandSouth SudanSurinameTongaTurks and Caicos IslandsTuvaluUnited States Virgin IslandsVanuatuVatican City

1. 1 · Publisher

   Lenka Dražanová, European University Institute (Migration Policy Centre)

   doi.org

2. 2 · Their file

   Historical Index of Ethnic Fractionalization 2013

   3476857

3. 3 · Read by this site

   October 3, 2026

   Imported by a script that parses each figure and writes it down unrounded.

4. 4 · Stored as

   69 files, one per year

   Each downloads as a CSV, or every year together as ethnic-fractionalization-all-editions-nations-inquiry.csv

5. 5 · Used on

   Its statistic page, and every profile it measures

   /statistics/ethnic-fractionalization

From the author's own Harvard Dataverse deposit, released in 2020 and dedicated to the public domain (CC0). The index is the author's, computed from group shares compiled by the Cline Center's Composition of Religious and Ethnic Groups project at the University of Illinois; the group shares themselves are not republished here.

• Charted

  Historical Index of Ethnic Fractionalization by country

  Who is highest, the map, the spread, who rose and fell, and the records.

• Subjects

  • People & Population

• Near neighbours

  • Population Living in Cities (Degree of Urbanisation)UN DESA Population Division · 76 held · 1950–2025
  • Urban Population Share (National Definitions)UN DESA Population Division · 76 held · 1950–2025
  • Crude Birth RateUN DESA Population Division · 74 held · 1950–2023