| Name | Marion County |
| State | Indiana |
| FIPS Code | 18097 |
| County Seat | Indianapolis |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2024) | 975,654 |
| Population Growth Rate(2020-2024) | -0.16% |
| Majority Ethnicity | White 54.41% |
| Public School Majority Ethnicity | African American 36% |
| Partisan Voting Index | Democratic:+13 |
| Unemployment Rate (May 2026) | 3.8% |
| Sales Tax Rate (2025) | 7% |
| Area Code(s) | 317 / 463 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 54.41% |
| African American | 27.76% |
| Hispanic | 13.43% |
| Asian | 3.95% |
| Native American | 0.44% |
| Hawaiin/Pacific Islander | 0.01% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 28.25% |
| African American | 36.44% |
| Hispanic | 24% |
| Asian | 4.96% |
| Native American | 0.12% |
| Hawaiin/Pacific Islander | 0.07% |