ZIP 37146 falls in Robertson County, Tennessee, where we hold 15,558 parcels measured as septic county-wide and 10,635 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 37146.
ZCTA 37146 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) |
|---|---|---|---|---|
| Robertson County, Tennessee | 54% | — | 15,558 | 10,635 |
| Cheatham County, Tennessee | 46% | 4,453 | 12,118 | 2,166 |
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 15,558 parcels measured as septic for Robertson County, Tennessee as a whole, not broken out by ZIP.
ZIP 37146 spans 2 counties: Robertson County, Tennessee, Cheatham County, Tennessee.