ZIP 56291 falls in Yellow Medicine County, Minnesota, where we hold 2,849 parcels measured as septic county-wide and 2,338 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 56291.
ZCTA 56291 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) |
|---|---|---|---|---|
| Yellow Medicine County, Minnesota | 42% | 2 | 2,849 | 2,338 |
| Lyon County, Minnesota | 31% | — | 2,860 | 6,366 |
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 2,849 parcels measured as septic for Yellow Medicine County, Minnesota as a whole, not broken out by ZIP.
ZIP 56291 spans 2 counties: Yellow Medicine County, Minnesota, Lyon County, Minnesota.