ZIP 38240 falls in Obion County, Tennessee, where we hold 6,641 parcels measured as septic county-wide and 6,291 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 38240.
ZCTA 38240 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) |
|---|---|---|---|---|
| Obion County, Tennessee | 89% | — | 6,641 | 6,291 |
| Dyer County, Tennessee | 11% | 1,089 | 6,675 | 7,691 |
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 6,641 parcels measured as septic for Obion County, Tennessee as a whole, not broken out by ZIP.
ZIP 38240 spans 2 counties: Obion County, Tennessee, Dyer County, Tennessee.