ZIP 37310 falls in Bradley County, Tennessee, where we hold 13,959 parcels measured as septic county-wide and 21,707 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 37310.
ZCTA 37310 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) |
|---|---|---|---|---|
| Bradley County, Tennessee | 89% | 2,934 | 13,959 | 21,707 |
| Polk County, Tennessee | 11% | — | 5,505 | 1,545 |
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 13,959 parcels measured as septic for Bradley County, Tennessee as a whole, not broken out by ZIP.
ZIP 37310 spans 2 counties: Bradley County, Tennessee, Polk County, Tennessee.