ZIP 55772 falls in Koochiching County, Minnesota, where we hold 3,267 parcels measured as septic county-wide and 336 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 55772.
ZCTA 55772 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) |
|---|---|---|---|---|
| Koochiching County, Minnesota | 93% | — | 3,267 | 336 |
| St. Louis County, Minnesota | 7% | 2,188 | 32,836 | 50,578 |
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 3,267 parcels measured as septic for Koochiching County, Minnesota as a whole, not broken out by ZIP.
ZIP 55772 spans 2 counties: Koochiching County, Minnesota, St. Louis County, Minnesota.