ZIP 83861 falls in Benewah County, Idaho, where we hold 2,278 parcels measured as septic county-wide and 1,939 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 83861.
ZCTA 83861 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) |
|---|---|---|---|---|
| Benewah County, Idaho | 89% | 4,423 | 2,278 | 1,939 |
| Shoshone County, Idaho | 6% | 5,828 | 6,550 | 455 |
| Kootenai County, Idaho | 5% | 14,577 | 16,437 | 38,556 |
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 2,278 parcels measured as septic for Benewah County, Idaho as a whole, not broken out by ZIP.
ZIP 83861 spans 3 counties: Benewah County, Idaho, Shoshone County, Idaho, Kootenai County, Idaho.