ZIP 59803 falls in Missoula County, Montana, where we hold 0 parcels measured as septic county-wide and 0 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 59803.
| County | Land in this ZIP | Documents held | On septic (county) | On sewer (county) |
|---|---|---|---|---|
| Missoula County, Montana | 100% | — | 0 | 0 |
2 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 |
|---|---|---|---|
| Pooley Excavating | Missoula | (406) 251-4048 | 5.0 (1) |
| Congdon Made | Missoula | (406) 304-9677 | — |
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 0 parcels measured as septic for Missoula County, Montana as a whole, not broken out by ZIP.
ZIP 59803 falls in Missoula County, Montana.