Houston Population 2025 Projections 2025. Harris county, texas 's estimated 2025 population is 4,888,913 with a growth rate of 1.11% in the past year according to the most recent united states census data. The unemployment rate hit 10.0 percent.

Experts predict that houston’s steady growth will continue and that the urban area will be home to 7.5 million people by the end of 2035. Chart and table of population level and growth rate for the houston metro area from 1950 to 2025.