Marion is located in Grant County, Indiana. Marion has a 2025 population of 685 . It is also the county seat of Grant County . Marion is currently growing at a rate of 0.15% annually but its population has decreased by -0.15% since the most recent census, which recorded a population of 686 in 2020.
The average household income in Marion is $121,843 with a poverty rate of 2.67%. The median age in Marion is 44.9 years: 54.4 years for males, and 34.5 years for females. For every 100 females there are 76.8 males.
Data after 2023 is projected based on recent change
The racial composition of Marion includes 98.54% White, and smaller percentages for Two or more races and multiracial populations.
White (98.54%)
Two or more races (1.46%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 406 | 98.54% |
| Two or more races | 6 | 1.46% |
Married
Widowed
Divorced
Separated
Never Married
Marion's average per capita income is $78,839. Household income levels show a median of $101,500. The poverty rate stands at 2.67%.
Name | Median | Mean |
|---|---|---|
| Families | $138,095 | $177,338 |
| Married Families | $138,095 | - |
| Households | $101,500 | $121,843 |
| Non Families | $18,750 | $21,594 |
Average Income
Median Household Income
Poverty Rate