United States Population 2024. The 2024 population density in the united states is 38 people per km 2 (98 people per mi 2), calculated on a total land area of 9,147,420 km2 (3,531,837 sq. Population 334.9 million people lived in the united states in 2023.

The 2024 population density in the united states is 38 people per km 2 (98 people per mi 2), calculated on a total land area of 9,147,420 km2 (3,531,837 sq. Population estimates produced by the u.s.