ZIP 98038 falls in King County, Washington, where we hold 84,437 parcels measured as septic county-wide and 486,662 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 98038.
| County | Land in this ZIP | Documents held | On septic (county) | On sewer (county) |
|---|---|---|---|---|
| King County, Washington | 100% | 184,607 | 84,437 | 486,662 |
19 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 |
|---|---|---|---|
| Puget Sound Septic | Maple Valley | (425) 806-9009 | 5.0 (2) |
| Stuth Company Inc | Maple Valley | (425) 255-3546 | 4.7 (15) |
| McNel Septic Service | Ravensdale | (425) 432-2270 | 4.5 (23) |
| Lilly's Septic Service | Maple Valley | (425) 432-3084 | 3.3 (23) |
| Aqua Test Inc | Maple Valley | (425) 432-9360 | — |
| Aqua Test Inc | Maple Valley | (425) 432-9360 | — |
| Sound | Maple Valley | (425) 806-9009 | — |
| Salish Sea Marine LLC (Royal Restrooms) | Maple Valley | (206) 816-5406 | — |
| Stuth Company Inc | Maple Valley | (425) 255-3546 | — |
| Puget Sound Septic DBA Yuk Truck | Maple Valley | (425) 806-9009 | — |
| Puget Sound Septic DBA Yuk Truck | Maple Valley | (425) 806-9009 | — |
| Stuth Company, Inc | Maple Valley | (425) 255-3546 | — |
| Puget Sound Septic | Maple Valley | (425) 806-9009 | — |
| Aqua Test, Inc | Maple Valley | (425) 432-9360 | — |
| A Team Septic Solutions | Maple Valley | (206) 491-9049 | — |
| A Team Septic Solutions | Maple Valley | (206) 491-9049 | — |
| Puget Sound Septic DBA Yuk Truck | Maple Valley | (425) 806-9009 | — |
| Puget Sound Septic DBA Yuk Truck | Maple Valley | (425) 806-9009 | — |
| Stuth Company, Inc | Maple Valley | (425) 255-3546 | — |
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 84,437 parcels measured as septic for King County, Washington as a whole, not broken out by ZIP.
ZIP 98038 falls in King County, Washington.