SortStack #110 — 2026-09-27

By population · Order from fewest to most people.

1. Voting members of the US House of Representatives 435

   Frozen by law since 1929, even though the US population has nearly tripled since.

2. The population of Vatican City 760

   Many of its citizens don't live inside the walls — they're diplomats posted abroad.

3. The population of Andorra 81K

   Co-ruled to this day by the President of France and a Spanish bishop.

4. London — the city proper 8.9M

   Technically the City of London has only about 8,000 residents; the rest is Greater London.

5. The population of Italy 59M

   Home to the most UNESCO World Heritage sites of any country.

6. The population of Japan 124M

   Sells more adult diapers than baby diapers — a snapshot of the world's oldest population.

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