ZIP 82401 falls in Washakie County, Wyoming. We have not measured septic data for this county yet. The county page below has what we do know: where records are kept and whether the portal is public.
ZCTA 82401 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) |
|---|---|---|---|---|
| Washakie County, Wyoming | 83% | — | — | — |
| Hot Springs County, Wyoming | 14% | 7 | — | — |
| Big Horn County, Wyoming | 3% | 52 | — | — |
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 have not measured septic-versus-sewer status for this county yet.
ZIP 82401 spans 3 counties: Washakie County, Wyoming, Hot Springs County, Wyoming, Big Horn County, Wyoming.