SortStack #201 — 2026-12-27

By population · Order from fewest to most people.

1. People who have ever flown in space 680

   More people summit Everest in a single busy season than have ever left Earth's atmosphere.

2. People who stay in Antarctica through the winter 1.1K

   Once the last plane leaves in March, even medical evacuation can be impossible until spring.

3. Residents of the island nation of Niue 1.9K

   One of the world's largest coral islands, and the first country fully covered by free Wi-Fi.

4. The population of San Marino 34K

   Claims to be the world's oldest republic, founded — by tradition — in the year 301.

5. The population of Malta 540K

   The EU's smallest member squeezes onto islands smaller than Philadelphia.

6. London — the city proper 8.9M

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

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