SortStack #670 — 2028-04-09

By population · Order from fewest to most people.

1. Sitting United States senators 100

   Two per state since 1789 — the chamber only grows when a new state joins the union.

2. The population of Iceland 390K

   So small that a dating app warns Icelanders if a match is actually their cousin.

3. The population of Hong Kong 7.5M

   Has more skyscrapers than any other city on Earth — roughly double New York's count.

4. The population of Istanbul 15.6M

   The only major city spanning two continents — you can commute between Europe and Asia by ferry.

5. The population of the Philippines 117M

   Spread across more than 7,600 islands — though most people live on just eleven of them.

6. Every human alive at the height of the Roman Empire 300M

   Fewer people than live in the United States today — across the entire planet.

← All puzzles · Play today’s SortStack