| Place Name | Harmony Township (Clark County) |
| Place Type | Township |
| ZIP Code(s) | 43140 45368 45369 45502 45505 |
| County | Clark County |
| Area Code(s) | 326,937,220,740 |
| Timezone | Eastern Standard Time (EST) |
| Population (2021) | 3,631 |
| Majority Ethnicity | White 98.73% |
| Metro/Micro Stats Area | Springfield, OH |
| US Congressional District(s) | Ohio 8th |
| State House Districts | 74 |
| State Senate Districts | 10 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 98.73% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 1.27% |