ZIP 37881 falls in Grainger County, Tennessee, where we hold 9,035 parcels measured as septic county-wide and 1,387 on sewer. We do not have a per-ZIP parcel count for this county, so this is the county total, not a count specific to ZIP 37881.
ZCTA 37881 is not entirely inside one county. Land-area share is from the 2020 Census ZCTA-to-county relationship file.
| County | Land in this ZIP | Documents held | On septic (county) | On sewer (county) |
|---|---|---|---|---|
| Grainger County, Tennessee | 56% | — | 9,035 | 1,387 |
| Hancock County, Tennessee | 36% | — | 2,899 | 717 |
| Hawkins County, Tennessee | 7% | — | 15,757 | 7,432 |
| Claiborne County, Tennessee | 0% | 1,906 | 13,653 | 110 |
1 businesses on record with an address in this ZIP: pumping, installation, design, inspection and repair. Not an endorsement, and we take no fee.
| Company | City | Phone | Rating |
|---|---|---|---|
| Fox Septic Service | Thorn Hill | (865) 356-2935 | — |
Land-area overlap is from the 2020 Census Bureau ZCTA5-to-county relationship file, not an estimate of ours. Parcel and document counts are rows we hold, not a survey of every property in the ZIP. Last verified 2026-09-01.
We hold 9,035 parcels measured as septic for Grainger County, Tennessee as a whole, not broken out by ZIP.
ZIP 37881 spans 4 counties: Grainger County, Tennessee, Hancock County, Tennessee, Hawkins County, Tennessee, Claiborne County, Tennessee.