| Place Name | Erwin |
| Place Type | Town |
| ZIP Code(s) | 37650 |
| County | Unicoi County |
| Area Code(s) | 423 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 6,080 |
| Population Growth Rate (2010-19) | -0.23% |
| Majority Ethnicity | White 89.42% |
| Metro/Micro Stats Area | Johnson City, TN |
| US Congressional District(s) | Tennessee 1st |
| State House Districts | 4 |
| State Senate Districts | 3 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 89.42% |
| African American | 0.29% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 10.29% |