Best Story · June 9, 2026
Independent research on American emigration, tracking US citizens abroad. Sourced data, no estimates.
What we publish · AER data

American emigration, measured strictly from what governments publish.

Half a million Americans leave the United States in a typical year, yet no public source tracks where they go. AER assembles each country's published series (censuses, residence permits, naturalizations, visitor visas) into one comparable view. We don't estimate. We don't model. Where the data exists, we publish it. Where it doesn't, we say so.

Data Transparency

Which countries publish the clearest view of their American population?

We score every country 0 to 5 on the data they publish about US citizens. These are this year's top 5.

01🇩🇰Denmark5.0 / 5
01🇸🇪Sweden5.0 / 5
03🇦🇹Austria4.5 / 5
03🇩🇪Germany4.5 / 5
03🇵🇹Portugal4.5 / 5
See the full Index
Live · what the published data says today
US-born stock · 99-country dataset
2.51M
1.4% YoY
Largest US-born population
797,266
Mexico · INEGI Census 2020
Annual US-citizen inflows · EU + UK
22,140
2024 · Eurostat MIGR_RESFIRST
5.8% YoY
Annual naturalizations · cross-border
3,512
former US citizens · 22 countries
8.1% YoY
Method · Aggregated from each country's published series. Where a country doesn't publish, it isn't counted.
The dashboard is subscriber access — every country, every domain, every series. See plans
The AER mission

Everyone sees it happening.
No one is documenting it.

Most coverage of Americans living abroad is fragmented, anecdotal or limited to individual countries. The AER data project is being built as a consistent, comparable data platform that tracks how American emigration actually works in practice: residency, migration flows, settlement patterns, citizenship, long-term outcomes.

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