Population Per Square Mile By State 2025. It's obvious that alaska is also by far the most sparsely populated state in the union, with an average density of just 1.2 people per square mile. High population densities have their advantages and disadvantages.
In 2025 is 34.77 people. Globally, the average population density is 62 people per kmยฒ in 2025, but there are very large differences across countries.