ZIP 37931 falls in Knox County, Tennessee, where we hold 1,532 parcels measured as septic county-wide and 91,171 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 37931.
ZCTA 37931 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) |
|---|---|---|---|---|
| Knox County, Tennessee | 91% | 100 | 1,532 | 91,171 |
| Anderson County, Tennessee | 9% | 8,894 | 12,147 | 16,226 |
3 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 |
|---|---|---|---|
| Kington Sewer And Septic Drain Cleaning Service | Knoxville | (865) 522-1634 | 5.0 (5) |
| Northwest Plumbing Company | Knoxville | (865) 690-7777 | 4.2 (5) |
| Kington Sewer and Septic Drain Cleaning Service | Knoxville | (865) 482-6513 | — |
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 1,532 parcels measured as septic for Knox County, Tennessee as a whole, not broken out by ZIP.
ZIP 37931 spans 2 counties: Knox County, Tennessee, Anderson County, Tennessee.