Harris County Flag

Harris County

State:
Texas
County Seat:
Houston

Harris County's 2026 population is estimated at 5,221,006, reflecting a 2.07% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Harris County is the largest county in Texas. The 2010 population was 4,107,542 and has grown 27.11% since 2010.

5,221,006
Total Population
3,059
Population Density (mi²)
1
Population Rank (State)
105.9K 2.07%
Annual Population Growth

Harris County Population

Demographics

Economics and Income Statistics