| Place Name | Etna |
| Place Type | Unincorporated |
| ZIP Code(s) | 03750 |
| County | Grafton County |
| Area Code(s) | 603 |
| Timezone | Eastern Standard Time (EST) |
| Population () | |
| Metro/Micro Stats Area | Lebanon, NH-VT |
| US Congressional District(s) | New Hampshire 2nd |
| State House Districts | Grafton 12 |
| State Senate Districts | 5 |