ZIP 37356 falls in Marion County, Tennessee, where we hold 8,160 parcels measured as septic county-wide and 2,924 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 37356.
ZCTA 37356 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) |
|---|---|---|---|---|
| Marion County, Tennessee | 56% | — | 8,160 | 2,924 |
| Grundy County, Tennessee | 43% | 5,268 | 4,267 | 1,365 |
| Franklin County, Tennessee | 1% | 18,787 | 11,011 | 6,989 |
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 8,160 parcels measured as septic for Marion County, Tennessee as a whole, not broken out by ZIP.
ZIP 37356 spans 3 counties: Marion County, Tennessee, Grundy County, Tennessee, Franklin County, Tennessee.