How many people live in Harris County, TX?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 5.01 million people living in Harris County, TX. That makes Harris County the third-most populous county in the US. It is also the largest in Texas, accounting for 15.8% of the state’s population.
5.01M
population of Harris County, TX (2024)
15.8%
County share of the Texas population (2024)
About 5.01 million people lived in Harris County, TX in 2024.
Population estimates, 2000–2024
What are Harris County, TX’s age demographics?
About 615,700 Harris County, TX residents are aged 65 and older in 2024. That represents 12.3% of its population. For comparison, the age group represents 14% of Texas’s population and 18% in the US overall.
Another 1.27 million Harris County, TX residents, or 25.4% of the population, were children under 18. For comparison, the age group represents 24.6% of Texas’s population and 21.6% in the US overall.
A lower share of Harris County, TX's population is aged 65 or older than the US as a whole.
Population estimates by age group, (2024)
What are Harris County, TX’s racial and ethnic demographics?
Hispanic residents make up 45% of the Harris County, TX population, higher than the national share of 20%. Harris County also has a larger share of people identifying as non-Hispanic Black or African American (19.5%) than the US overall (12.6%).
In contrast, Harris County’s non-Hispanic white population accounts for 26%, below the 57.5% nationwide, and the non-Hispanic two or more races population makes up 1.6% of the county, compared with 2.5% nationally.
Racial and ethnic make up differ based on location. These figures reflect how people identified their race alone (not in combination with other races), and separate out Hispanic or Latino ethnicity, following Census reporting standards.
Harris County, TX has a higher share of a non-Hispanic Black or African American population than Texas as a whole.
Population estimates by race and ethnicity, (2024)
The largest city or town in Harris County, TX is Houston with about 2.34 million residents in 2024.
Cities and towns in Harris County, TX ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Houston (pt.) | 2,339,948 |
| 2. | Pasadena | 149,617 |
| 3. | Baytown (pt.) | 80,964 |
| 4. | La Porte | 38,046 |
| 5. | Deer Park | 34,495 |
| 6. | Bellaire | 17,439 |
| 7. | Humble | 16,561 |
| 8. | South Houston | 16,146 |
| 9. | Tomball (pt.) | 15,152 |
| 10. | West University Place | 15,149 |
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Methodology
USAFacts standardizes data, in areas such as time and demographics, to make it easier to understand and compare.
The analysis was generated with the help of AI and reviewed by USAFacts for accuracy.
Page sources
USAFacts endeavors to share the most up-to-date information available. We sourced the data on this page directly from government agencies; however, the intervals at which agencies publish updated data vary.
