ZIP 56639 falls in Itasca County, Minnesota, where we hold 13,646 parcels measured as septic county-wide and 8,765 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 56639.
ZCTA 56639 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) |
|---|---|---|---|---|
| Itasca County, Minnesota | 52% | — | 13,646 | 8,765 |
| Koochiching County, Minnesota | 48% | — | 3,267 | 336 |
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 13,646 parcels measured as septic for Itasca County, Minnesota as a whole, not broken out by ZIP.
ZIP 56639 spans 2 counties: Itasca County, Minnesota, Koochiching County, Minnesota.