Marshall County's 2026 population is estimated at 29,028, reflecting a -0.56% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Marshall County is the 18th largest county in West Virginia. The 2010 population was 33,091 and has grown -12.28% since 2010.
Data after 2023 is projected based on recent change
Overall: 46.3 years
Female: 47.4 years
Male: 44.2 years
There are 24,195 adults, (7,095 of whom are seniors) in Marshall County.
Female: 14,638 (49%)
Male: 15,227 (51%)
The racial composition of Marshall County includes 93.09% White, and smaller percentages for other race, Asian, Black or African American, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 27,801 | 93.09% |
| Two or more races | 1,370 | 4.59% |
| Other race | 455 | 1.52% |
| Asian | 104 | 0.35% |
| Black or African American | 98 | 0.33% |
| Native American | 19 | 0.06% |
| Native Hawaiian or Pacific Islander | 18 | 0.06% |
Marshall County 's average per capita income is $41,263. Household income levels show a median of $59,169. The poverty rate stands at 16.82%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $87,955 | - |
| Families | $72,468 | $91,093 |
| Households | $59,169 | $78,395 |
| Non Families | $32,727 | $48,273 |
Average Income
Median Household Income
Poverty Rate