How many people live in Madison County, AL?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 423,400 people living in Madison County, AL. That makes Madison County the second-most populous county in Alabama. It is home to 8.2% of people living in the state.
423K
population of Madison County, AL (2024)
8.2%
County share of the Alabama population (2024)
About 423,400 people lived in Madison County, AL in 2024.
Population estimates, 2000–2024
What are Madison County, AL’s age demographics?
About 69,300 Madison County, AL residents are aged 65 and older in 2024. That represents 16.4% of its population. For comparison, the age group represents 18.6% of Alabama’s population and 18% in the US overall.
Another 90,300 Madison County residents, or 21.3% of the population, were children under 18. For comparison, the age group represents 22.1% of Alabama’s population and 21.6% in the US overall.
A lower share of Madison County, AL's population is aged 65 or older than the US as a whole.
Population estimates by age group, (2024)
What are Madison County, AL’s racial and ethnic demographics?
Non-Hispanic white residents make up 61.8% of the Madison County, AL population, higher than the national share of 57.5%. Madison County also has a larger share of people identifying as non-Hispanic Black or African American (24.6%) than the US overall (12.6%).
In contrast, Madison County’s Hispanic population accounts for 7.2%, below the 20% nationwide, and the non-Hispanic Asian population makes up 2.8% of the county, compared with 6.5% 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.
Madison County, AL has a higher share of a Hispanic population than Alabama as a whole.
Population estimates by race and ethnicity, (2024)
The largest city or town in Madison County, AL is Huntsville with about 225,300 residents in 2024.
Cities and towns in Madison County, AL ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Huntsville (pt.) | 225,322 |
| 2. | Madison (pt.) | 50,506 |
| 3. | Triana | 4,936 |
| 4. | Owens Cross Roads | 3,164 |
| 5. | New Hope | 2,954 |
| 6. | Gurley | 846 |
| 7. | Balance of Madison County | 135,627 |
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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.
