Total Population in Marion County, IN
ACS 2024 5-Year Estimates
How Marion County Compares
National Distribution
Where Marion County falls among all 3,222 U.S. counties for total population.
■ Marion County: 975,809
Ranking Context
| Rank | County | Value |
|---|---|---|
| #51 | Gwinnett County, GA | 979,864 |
| #52 | Denton County, TX | 979,561 |
| #53 | Capitol Planning Region, CT | 977,290 |
| #54 | Marion County, IN | 975,809 |
| #55 | Pinellas County, FL | 963,481 |
| #56 | Bergen County, NJ | 962,316 |
| #57 | Prince George's County, MD | 959,754 |
Total Population in Marion County, Indiana
Marion County, Indiana has a total population of 975,809, which ranks #54 of 3,222 out of 3,222 counties nationwide. This is 99.7% below the national value of 330M.
Within Indiana, Marion County ranks #1 of 92 out of 92 counties. This places it in the 98th percentile nationally.
Total population count from the American Community Survey. All data comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates for 2024.
About this data
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates (2024). All values are estimates derived from survey samples and are subject to margin of error. For more information, see our methodology.