ZIP 37774 falls in Loudon County, Tennessee, where we hold 11,771 parcels measured as septic county-wide and 10,971 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 37774.
ZCTA 37774 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) |
|---|---|---|---|---|
| Loudon County, Tennessee | 86% | — | 11,771 | 10,971 |
| Roane County, Tennessee | 13% | 18,206 | 11,677 | 10,297 |
| Monroe County, Tennessee | 1% | 1,000 | 11,762 | 6,497 |
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 11,771 parcels measured as septic for Loudon County, Tennessee as a whole, not broken out by ZIP.
ZIP 37774 spans 3 counties: Loudon County, Tennessee, Roane County, Tennessee, Monroe County, Tennessee.