How many people live in Harrison County, MS?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 213,700 people living in Harrison County, MS. That makes Harrison County the most populous county in Mississippi. It is home to 7.2% of people living in the state.
214K
population of Harrison County, MS (2024)
7.2%
County share of the Mississippi population (2024)
About 213,700 people lived in Harrison County, MS in 2024.
Population estimates, 2000–2024
What are Harrison County, MS’s age demographics?
About 37,700 Harrison County, MS residents are aged 65 and older in 2024. That represents 17.6% of its population. For comparison, the age group represents 18% of Mississippi’s population and 18% in the US overall.
Another 49,200 Harrison County residents, or 23% of the population, were children under 18. For comparison, the age group represents 23% of Mississippi’s population and 21.6% in the US overall.
A higher share of Harrison County, MS's population is aged under 18 than the US as a whole.
Population estimates by age group, (2024)
What are Harrison County, MS’s racial and ethnic demographics?
Non-Hispanic white residents make up 60.9% of the Harrison County, MS population, higher than the national share of 57.5%. Harrison County, MS also has a larger share of people identifying as non-Hispanic Black or African American (25.7%) than the US overall (12.6%).
In contrast, Harrison County’s Hispanic population accounts for 7.4%, below the 20% nationwide, and the non-Hispanic Asian population makes up 3% 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.
Harrison County, MS has a higher share of a non-Hispanic white population than Mississippi as a whole.
Population estimates by race and ethnicity, (2024)
The largest city or town in Harrison County, MS is Gulfport with about 74,600 residents in 2024.
Cities and towns in Harrison County, MS ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Gulfport | 74,621 |
| 2. | Biloxi | 48,144 |
| 3. | Long Beach | 17,217 |
| 4. | D'Iberville | 13,399 |
| 5. | Pass Christian | 6,429 |
| 6. | Balance of Harrison County | 53,920 |
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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.
