ZIP 38366 falls in Madison County, Tennessee, where we hold 11,620 parcels measured as septic county-wide and 24,439 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 38366.
ZCTA 38366 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) |
|---|---|---|---|---|
| Madison County, Tennessee | 73% | 416 | 11,620 | 24,439 |
| Chester County, Tennessee | 27% | 7,023 | 13 | 0 |
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 11,620 parcels measured as septic for Madison County, Tennessee as a whole, not broken out by ZIP.
ZIP 38366 spans 2 counties: Madison County, Tennessee, Chester County, Tennessee.