How many people live in New Madrid County, MO?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 15,200 people living in New Madrid County, MO. That makes New Madrid County the 66th-most populous county in Missouri. It is home to 0.24% of people living in the state.
15.2K
population of New Madrid County, MO (2024)
0.24%
County share of the Missouri population (2024)
About 15,200 people lived in New Madrid County, MO in 2024.
Population estimates, 2000–2024
What are New Madrid County, MO’s age demographics?
About 3,100 New Madrid County residents are aged 65 and older in 2024. That represents 20.4% of its population. For comparison, the age group represents 18.8% of Missouri’s population and 18% in the US overall.
Another 3,600 New Madrid County residents, or 23.5% of the population, were children under 18. For comparison, the age group represents 22% of Missouri’s population and 21.6% in the US overall.
A lower share of New Madrid County, MO's population is aged 25–44 than the US as a whole.
Population estimates by age group, (2024)
What are New Madrid County, MO’s racial and ethnic demographics?
Non-Hispanic white residents make up 78.1% of the New Madrid County population, higher than the national share of 57.5%. New Madrid County also has a larger share of people identifying as non-Hispanic Black or African American (16.9%) than the US overall (12.6%).
In contrast, New Madrid County’s Hispanic population accounts for 2.1%, below the 20% nationwide, and the non-Hispanic Asian population makes up 0.39% 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.
New Madrid County, MO has a higher share of a non-Hispanic Black or African American population than Missouri as a whole.
Population estimates by race and ethnicity, (2024)
The largest city or town in New Madrid County, MO is Portageville with about 2,700 residents in 2024.
Cities and towns in New Madrid County, MO ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Portageville (pt.) | 2,723 |
| 2. | New Madrid | 2,597 |
| 3. | Sikeston (pt.) | 1,940 |
| 4. | Lilbourn | 913 |
| 5. | Gideon | 718 |
| 6. | Morehouse | 685 |
| 7. | Parma | 510 |
| 8. | Matthews | 501 |
| 9. | Marston | 365 |
| 10. | Risco | 263 |
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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.
