Us Population 2024 Per Square Mile. Population density is the number of human inhabitants per unit of area, typically square mile (mi² or mile²) or square kilometer (km²). Is 332 million (2020), and the country ranks 146th in population density (87 pop/mi2 or 34 pop/km2).
Explore the population of the united states & how it has changed over time. Km of land area) in united states was reported at 36.3 sq.