ZIP Code 37684 is located in Mountain Home Tennessee. Portions of 37684 are also in Johnson City. 37684 is entirely within Washington County. Regionally, it is located in the Tri-Cities Region.
| ZIP Code Name | Mountain Home |
| Primary County | Washington County |
| ZIP Code Type | PO Box |
| Area Code(s) | 423 |
| Current Time | EDT |
| Coordinates | 36.30793381,-82.37693787 |
| Adjacent ZIP Codes | |
| Cities/Towns in 37684 | |
| Region | Tri-Cities Region |
| Metropolitan/Micropolitan Stat Area | Johnson City, TN |
| Time Zone | Eastern Daylight Time |
| IANA Timezone | America/New_York |
| Area | 0.04669773 Square Miles |
| US Congressional Districts in 37684 | |
| Tennessee State Senate Districts in 37684 | |
| Tennessee State House of Representatives Districts in 37684 |
| School Districts in 37684 |