ZIP 98077 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 98077.
ZCTA 98077 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) |
|---|---|---|---|---|
| King County, Washington | 85% | 184,607 | 84,437 | 486,662 |
| Snohomish County, Washington | 15% | 155,022 | 57,732 | 199,061 |
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 |
|---|---|---|---|
| Northlake Septic Service | Woodinville | (425) 486-1233 | 4.5 (8) |
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 98077 spans 2 counties: King County, Washington, Snohomish County, Washington.