Us Population 2024 Demographics By State. This is a bit higher than the 329.06 million. Between 2000 and 2010, the population of illinois grew by a mere 3.3%, compared to the national average us population growth of 9.7%.

Between 2000 and 2010, the population of illinois grew by a mere 3.3%, compared to the national average us population growth of 9.7%. April 11, 2024 — the u.s.