Data Essay — Migration & Identity

Birthplace Diversity

How concentrated is each country’s population by place of birth? The Herfindahl–Hirschman Index measures diversity across OECD nations — lower scores mean more diverse origins.

Data: OECD International Migration Database (DF_MIG_POPF) · Population: World Bank · Most recent year available per country

Measure
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Full Population HHI: Calculated over all residents — domestic-born as one group, each origin country separately. 0 = perfectly diverse, 10,000 = everyone from the same country.
Countries ranked by birthplace concentration
HHI scale: 0 (diverse) → 10,000 (homogeneous) — click any row for detail
Select a country to explore
its origin breakdown