ZIP 83856 falls in Bonner County, Idaho, where we hold 15,168 parcels measured as septic county-wide and 7,184 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 83856.
ZCTA 83856 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) |
|---|---|---|---|---|
| Bonner County, Idaho | 92% | 3,978 | 15,168 | 7,184 |
| Pend Oreille County, Washington | 8% | 1,449 | 5,174 | 2,396 |
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 15,168 parcels measured as septic for Bonner County, Idaho as a whole, not broken out by ZIP.
ZIP 83856 spans 2 counties: Bonner County, Idaho, Pend Oreille County, Washington.