ZIP 55309 falls in Sherburne County, Minnesota, where we hold 12,971 parcels measured as septic county-wide and 16,390 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 55309.
| County | Land in this ZIP | Documents held | On septic (county) | On sewer (county) |
|---|---|---|---|---|
| Sherburne County, Minnesota | 100% | — | 12,971 | 16,390 |
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 12,971 parcels measured as septic for Sherburne County, Minnesota as a whole, not broken out by ZIP.
ZIP 55309 falls in Sherburne County, Minnesota.