Houston Population 2024 By Age. Houston’s population density is 3,660 people per square kilometer, which is one of the most densely populated major city in us. Between 2021 and 2022 the population of houston, tx grew from 2.29m to 2.3m, a 0.129%.

Houston has a 2024 population of 2,319,119. Usafacts uses census data to break down the population of texas by race, age, and more.