Total Population in Mercer County, OH
ACS 2024 5-Year Estimates
How Mercer County Compares
National Distribution
Where Mercer County falls among all 3,222 U.S. counties for total population.
■ Mercer County: 42,484
Ranking Context
| Rank | County | Value |
|---|---|---|
| #1,154 | Pierce County, WI | 42,584 |
| #1,155 | Upshur County, TX | 42,567 |
| #1,156 | Muscatine County, IA | 42,559 |
| #1,157 | Mercer County, OH | 42,484 |
| #1,158 | Union County, PA | 42,456 |
| #1,159 | Baxter County, AR | 42,407 |
| #1,160 | Hendry County, FL | 42,382 |
Total Population in Mercer County, Ohio
Mercer County, Ohio has a total population of 42,484, which ranks #1,157 of 3,222 out of 3,222 counties nationwide. This is 100.0% below the national value of 330M.
Within Ohio, Mercer County ranks #57 of 88 out of 88 counties. This places it in the 64th 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.