Mason is located in Marion County, Missouri. Mason has a 2025 population of 12,059 . Mason is currently declining at a rate of 0% annually and its population has decreased by 0% since the most recent census, which recorded a population of 0 in 2020.
The average household income in Mason is $65,385 with a poverty rate of 20.66%. The median age in Mason is 38.3 years: 36.3 years for males, and 40.2 years for females. For every 100 females there are 88.5 males.
Data after 2023 is projected based on recent change
The racial composition of Mason includes 87.88% White, 7.04% Black or African American, and smaller percentages for other race, Asian, Native Hawaiian or Pacific Islander, Native American and multiracial populations.
White (87.88%)
Black or African American (7.04%)
Two or more races (4.07%)
Other race (0.55%)
Asian (0.35%)
Native Hawaiian or Pacific Islander (0.07%)
Native American (0.05%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 10,597 | 87.88% |
| Black or African American | 849 | 7.04% |
| Two or more races | 491 | 4.07% |
| Other race | 66 | 0.55% |
| Asian | 42 | 0.35% |
| Native Hawaiian or Pacific Islander | 8 | 0.07% |
| Native American | 6 | 0.05% |
Married
Widowed
Divorced
Separated
Never Married
Mason's average per capita income is $36,147. Household income levels show a median of $52,977. The poverty rate stands at 20.66%.
Name | Median | Mean |
|---|---|---|
| Married Families | $75,443 | - |
| Families | $56,341 | $67,827 |
| Households | $52,977 | $65,385 |
| Non Families | $26,560 | $53,029 |
Average Income
Median Household Income
Poverty Rate