| Place Name | Etna |
| Place Type | Census Designated Place |
| ZIP Code(s) | 83118 |
| County | Lincoln County |
| Area Code(s) | 307 |
| Timezone | Mountain Daylight Time (MDT) |
| Population (2022) | 25 |
| Population Growth Rate (2010-19) | 12.80% |
| US Congressional District(s) | Wyoming At-Large |
| State House Districts | 22 |
| State Senate Districts | 16 |
| Race/Ethnicy | Percentage of Population () |
|---|---|
| White | 0% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |