ZIP 37057 falls in Trousdale County, Tennessee, where we hold 1,301 parcels measured as septic county-wide and 2,257 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 37057.
ZCTA 37057 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) |
|---|---|---|---|---|
| Trousdale County, Tennessee | 38% | 4,547 | 1,301 | 2,257 |
| Smith County, Tennessee | 31% | — | 6,124 | 2,092 |
| Macon County, Tennessee | 31% | — | 6,954 | 2,539 |
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 1,301 parcels measured as septic for Trousdale County, Tennessee as a whole, not broken out by ZIP.
ZIP 37057 spans 3 counties: Trousdale County, Tennessee, Smith County, Tennessee, Macon County, Tennessee.