Most Populous Countries Not on the UN Security Council

As of 2023, according to UN.org and United Nations Population Division from worldmeters.info

Populations shown rounded to the nearest 1 million persons

Interesting Notes: The populations of the current members of the UN Security council amount to approximately 31% of the world's total human population. The populations of the permanent members of the UN Security council amount to approximately 26% of the world's total human population.