ZIP 83641 falls in Owyhee County, Idaho, where we hold 2,716 parcels measured as septic county-wide and 2,047 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 83641.
ZCTA 83641 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) |
|---|---|---|---|---|
| Owyhee County, Idaho | 61% | 3,815 | 2,716 | 2,047 |
| Canyon County, Idaho | 25% | 26,706 | 6,945 | 65,420 |
| Ada County, Idaho | 14% | 15,364 | 3,021 | 154,183 |
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 2,716 parcels measured as septic for Owyhee County, Idaho as a whole, not broken out by ZIP.
ZIP 83641 spans 3 counties: Owyhee County, Idaho, Canyon County, Idaho, Ada County, Idaho.