Carter County, Tennessee ZIP codes
6 ZIP codes are in Carter County, plus 3 that cross in from neighboring counties. It's part of the Johnson City, TN metro area.
- ZIP codes
- 6
- Population in these ZIPs
- 44,787
- Avg. median income
- $51,600population-weighted
- Cities & towns
- 5
Click anywhere on the map to see which ZIP code it's in.
ZIP codes in Carter County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 37643 | Elizabethton | 34,120 | $51,831 | $233,200 |
| 37644 PO Box | Elizabethton | — | — | — |
| 37658 | Hampton | 3,854 | $37,995 | $208,600 |
| 37682 | Milligan College | 591 | — | — |
| 37687 | Roan Mountain | 4,493 | $49,914 | $247,000 |
| 37694 | Watauga | 1,729 | $81,250 | $242,600 |
ZIP codes partly in Carter County
These ZIP codes are mostly in a neighboring county but cover part of Carter County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 37601 | Johnson City | Washington County | 38,008 | $50,686 | $262,800 |
| 37604 | Johnson City | Washington County | 39,097 | $52,345 | $282,600 |
| 37640 | Butler | Johnson County | 3,851 | $55,402 | $306,600 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities and towns in Carter County
Nearby counties
Frequently asked questions
How many ZIP codes are in Carter County, Tennessee?
6 ZIP codes are mainly in Carter County, and 3 more ZIP codes from neighboring areas reach partly into it.
What cities are in Carter County?
ZIP codes in Carter County use the city names Elizabethton, Hampton, Milligan College, Roan Mountain and Watauga.
What metro area is Carter County in?
Carter County is part of the Johnson City, TN metropolitan statistical area.