Marion is located in Marion County, Kansas. Marion has a 2025 population of 399 . It is also the county seat of Marion County . Marion is currently declining at a rate of -0.5% annually and its population has decreased by -3.62% since the most recent census, which recorded a population of 414 in 2020.
The average household income in Marion is $142,009 with a poverty rate of 0%. The median age in Marion is 33.9 years: 17.9 years for males, and 50.6 years for females. For every 100 females there are 94.7 males.
Data after 2023 is projected based on recent change
The racial composition of Marion includes 100% White, and smaller percentages for and multiracial populations.
White (100%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 292 | 100% |
Married
Widowed
Divorced
Separated
Never Married
Marion's average per capita income is $55,982. Household income levels show a median of $148,750. The poverty rate stands at 0%.
Name | Median | Mean |
|---|---|---|
| Households | $148,750 | $142,009 |
| Families | $95,357 | $115,232 |
| Married Families | $95,357 | - |
| Non Families | - | - |
Average Income
Median Household Income
Poverty Rate