Marion County's 2026 population is estimated at 17,809, reflecting a 0.61% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Marion County is the 41st largest county in Arkansas. The 2010 population was 16,665 and has grown 6.86% since 2010.
Data after 2023 is projected based on recent change
Overall: 51.8 years
Female: 51.9 years
Male: 51.3 years
There are 14,031 adults, (4,993 of whom are seniors) in Marion County.
Female: 8,640 (50.2%)
Male: 8,588 (49.8%)
The racial composition of Marion County includes 92.26% White, and smaller percentages for Native American, Asian, other race, Black or African American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 15,895 | 92.26% |
| Two or more races | 831 | 4.82% |
| Native American | 232 | 1.35% |
| Asian | 156 | 0.91% |
| Other race | 85 | 0.49% |
| Black or African American | 15 | 0.09% |
| Native Hawaiian or Pacific Islander | 14 | 0.08% |
Marion County 's average per capita income is $35,101. Household income levels show a median of $48,619. The poverty rate stands at 17.98%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $65,847 | - |
| Families | $60,594 | $76,467 |
| Households | $48,619 | $65,215 |
| Non Families | $31,322 | $42,712 |
Average Income
Median Household Income
Poverty Rate
