| Place Name | Sidney |
| Place Type | City |
| ZIP Code(s) | 45365 |
| County | Shelby County |
| Area Code(s) | 326,937 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 21,180 |
| Population Growth Rate (2010-19) | -3.01% |
| Majority Ethnicity | White 91.1% |
| Metro/Micro Stats Area | Sidney, OH |
| US Congressional District(s) | Ohio 4th |
| State House Districts | 85 |
| State Senate Districts | 12 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 91.1% |
| African American | 4.37% |
| Hispanic | 0.31% |
| Asian | 1.29% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 2.93% |