Marion County's estimated 2026 population is 65,353 with a growth rate of 0.37% in the past year according to the most recent United States census data. Marion County is the 37th largest county in Ohio. The 2010 population was 66,459 and has seen a growth of -1.66% since that time.
Data after 2023 is projected based on recent change
Overall: 40.1 years
Female: 41 years
Male: 39.6 years
There are 51,156 adults, (12,140 of whom are seniors) in Marion County.
Female: 30,014 (46.2%)
Male: 35,006 (53.8%)
The racial composition of Marion County includes 87.03% White, 4.91% Black or African American, and smaller percentages for other race, Asian, Native American and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 56,588 | 87.03% |
| Two or more races | 3,771 | 5.8% |
| Black or African American | 3,195 | 4.91% |
| Other race | 925 | 1.42% |
| Asian | 395 | 0.61% |
| Native American | 146 | 0.22% |
Marion County's average per capita income is $45,148. Household income levels show a median of $59,371. The poverty rate stands at 16.65%.
Name | Median | Mean |
|---|---|---|
| Married Families | $94,237 | $111,498 |
| Families | $76,382 | $93,191 |
| Households | $59,371 | $76,923 |
| Non Families | $33,859 | $47,958 |
Average Income
Median Household Income
Poverty Rate
