ZIP 98304 falls in Pierce County, Washington, where we hold 200,696 parcels measured as septic county-wide. We do not have a per-ZIP parcel count for this county, so this is the county total, not a count specific to ZIP 98304.
ZCTA 98304 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) |
|---|---|---|---|---|
| Pierce County, Washington | 98% | 172,075 | 200,696 | — |
| Lewis County, Washington | 2% | 206 | 18,553 | 12,428 |
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 |
|---|---|---|---|
| Conley INC | Ashford | (253) 961-0819 | — |
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 200,696 parcels measured as septic for Pierce County, Washington as a whole, not broken out by ZIP.
ZIP 98304 spans 2 counties: Pierce County, Washington, Lewis County, Washington.