ZIP 55810 falls in St. Louis County, Minnesota, where we hold 32,836 parcels measured as septic county-wide and 50,578 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 55810.
ZCTA 55810 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) |
|---|---|---|---|---|
| St. Louis County, Minnesota | 94% | 2,188 | 32,836 | 50,578 |
| Carlton County, Minnesota | 6% | — | 12,613 | 1,604 |
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 32,836 parcels measured as septic for St. Louis County, Minnesota as a whole, not broken out by ZIP.
ZIP 55810 spans 2 counties: St. Louis County, Minnesota, Carlton County, Minnesota.