Grainger County, Tennessee ZIP codes
6 ZIP codes are in Grainger County, plus 3 that cross in from neighboring counties. It's part of the Knoxville, TN metro area.
- ZIP codes
- 6
- Population in these ZIPs
- 24,551
- Avg. median income
- $51,600population-weighted
- Cities & towns
- 6
Click anywhere on the map to see which ZIP code it's in.
ZIP codes in Grainger County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 37708 | Bean Station | 6,512 | $42,152 | $267,100 |
| 37709 | Blaine | 4,177 | $75,799 | $331,400 |
| 37848 | Powder Springs | 145 | — | $236,900 |
| 37861 | Rutledge | 8,608 | $52,265 | $290,600 |
| 37881 | Thorn Hill | 1,677 | $37,443 | $219,400 |
| 37888 | Washburn | 3,432 | $45,669 | $239,300 |
ZIP codes partly in Grainger County
These ZIP codes are mostly in a neighboring county but cover part of Grainger County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 37779 | Luttrell | Union County | 3,649 | $51,357 | $239,900 |
| 37806 | Mascot | Knox County | 3,674 | $59,605 | $279,900 |
| 37811 | Mooresburg | Hawkins County | 3,931 | $52,047 | $225,600 |
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 Grainger County
Nearby counties
Frequently asked questions
How many ZIP codes are in Grainger County, Tennessee?
6 ZIP codes are mainly in Grainger County, and 3 more ZIP codes from neighboring areas reach partly into it.
What cities are in Grainger County?
ZIP codes in Grainger County use the city names Bean Station, Blaine, Powder Springs, Rutledge, Thorn Hill and Washburn.
What metro area is Grainger County in?
Grainger County is part of the Knoxville, TN metropolitan statistical area.