ZIP 98501 falls in Thurston County, Washington, where we hold 28,502 parcels measured as septic county-wide and 60,687 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 98501.
| County | Land in this ZIP | Documents held | On septic (county) | On sewer (county) |
|---|---|---|---|---|
| Thurston County, Washington | 100% | 26,354 | 28,502 | 60,687 |
7 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 |
|---|---|---|---|
| Jim Henry Design Services | Turnwater | (360) 956-7242 | 5.0 (4) |
| Howdys Doody Service | Olympia | (360) 584-9936 | 4.4 (55) |
| A-Action Group Utilities, Inc. | Olympia | (360) 943-9200 | 4.0 (8) |
| A-Action Group Utilities CO | Olympia | (360) 943-9200 | — |
| CK Construction and Excavating LLC | Olympia | (360) 789-1763 | — |
| Howdys Doody Service, Inc | Olympia | (360) 584-9936 | — |
| Howdys Doody Service, Inc | Olympia | (360) 584-9936 | — |
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 28,502 parcels measured as septic for Thurston County, Washington as a whole, not broken out by ZIP.
ZIP 98501 falls in Thurston County, Washington.