I was reading a book just now that led me to look up this information, and it’s fascinating. There’s a nugget of information from it below.

On average, per square mile:

• Canada has 9.28 people.
• The United States has 84.09.
• The United Kingdom has 679.
• The Macau region of China tops the list 54,882

List of sovereign states and dependent territories by population density – Wikipedia, the free encyclopedia