| Place Name | Londonderry Township |
| Place Type | Township |
| ZIP Code(s) | 43773 43973 43983 |
| County | Guernsey County |
| Area Code(s) | 220,740 |
| Timezone | Eastern Standard Time (EST) |
| Population (2021) | 647 |
| Majority Ethnicity | White 100% |
| Metro/Micro Stats Area | Cambridge, OH |
| US Congressional District(s) | Ohio 6th |
| State House Districts | 97 |
| State Senate Districts | 20 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 100% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |