ZIP 83204 falls in Power County, Idaho, where we hold 1,308 parcels measured as septic county-wide and 1,784 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 83204.
ZCTA 83204 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) |
|---|---|---|---|---|
| Power County, Idaho | 59% | — | 1,308 | 1,784 |
| Bannock County, Idaho | 41% | 45 | 3,084 | 23,215 |
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 1,308 parcels measured as septic for Power County, Idaho as a whole, not broken out by ZIP.
ZIP 83204 spans 2 counties: Power County, Idaho, Bannock County, Idaho.