We have 556 parcels measured as septic in ZIP 99009 itself (Spokane County, Washington), out of 1,349 parcels in our records for this ZIP.
ZCTA 99009 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) |
|---|---|---|---|---|
| Spokane County, Washington | 65% | 27 | 36,413 | 127,463 |
| Pend Oreille County, Washington | 35% | 1,449 | 5,174 | 2,396 |
1 businesses on record with an address in this ZIP: pumping, installation, design, inspection and repair. Not an endorsement, and we take no fee.
| Company | City | Phone | Rating |
|---|---|---|---|
| Elk Chattaroy Septic Service | Elk | (509) 292-8599 | 4.7 (9) |
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 measured 556 parcels as septic in ZIP 99009 itself, out of 1,349 parcels in our records for this ZIP.
ZIP 99009 spans 2 counties: Spokane County, Washington, Pend Oreille County, Washington.