Marion County's estimated 2025 population is 28,538 with a growth rate of 0.4% in the past year according to the most recent United States census data. Marion County is the 38th largest county in Missouri. The 2010 population was 28,785 and has seen a growth of -0.86% since that time.
Data after 2023 is projected based on recent change
The racial composition of Marion County includes 89.56% White, 5.2% Black or African American, and smaller percentages for Asian, other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
White (89.56%)
Black or African American (5.2%)
Two or more races (4.36%)
Asian (0.34%)
Other race (0.31%)
Native American (0.21%)
Native Hawaiian or Pacific Islander (0.03%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 25,518 | 89.56% |
| Black or African American | 1,481 | 5.2% |
| Two or more races | 1,241 | 4.36% |
| Asian | 98 | 0.34% |
| Other race | 87 | 0.31% |
| Native American | 60 | 0.21% |
| Native Hawaiian or Pacific Islander | 8 | 0.03% |
Married
Widowed
Divorced
Separated
Never Married
Marion County's average per capita income is $41,274. Household income levels show a median of $63,908. The poverty rate stands at 13.59%.
Name | Median | Mean |
|---|---|---|
| Married Families | $90,883 | $103,886 |
| Families | $77,421 | $88,493 |
| Households | $63,908 | $77,702 |
| Non Families | $33,307 | $50,094 |
Average Income
Median Household Income
Poverty Rate
