90% of the world’s population lives above the equator.
Ireland’s population still hasn’t recovered from the potato famine 160 years ago. It is still 2 million lower than it was before the famine.
Nebraska has a town called Monowi with a population of one. The only resident is a woman who is the Mayor, Bartender, and Librarian.
Blue whale populations are estimated at between 10,000-25,000 and classed as endangered.
Earth's population is really not so big --- all humans could fit into a 1 km cube
Tokyo is the world's largest city with 37 million inhabitants.
California is home to nearly 12% of all Americans.
Mars' current population is seven, all robots.
Montana has three times as many cows as it does people.
Japan's aging population is a major problem. By 2100, the population fo Tokyo over 65 will equal the working age population