ZIP 37871 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 37871.
ZCTA 37871 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 | 46% | 100 | 1,532 | 91,171 |
| Jefferson County, Tennessee | 42% | 1 | 17,552 | 4,709 |
| Sevier County, Tennessee | 12% | 8 | 24,755 | 13,592 |
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 37871 spans 3 counties: Knox County, Tennessee, Jefferson County, Tennessee, Sevier County, Tennessee.