ZIP codes in Lyon County
14 ZIPs touch Lyon County, Minnesota. The blue dashed line is the county border; orange ZIPs reach into it.
14
ZIP codes
11
cross the county line
29,734
people in these ZIPs
87
counties in MN
Most people
Lyon County ZIP list
More counties in Minnesota
- Koochiching County15
- Lac qui Parle County10
- Lake County9
- Lake of the Woods County5
- Le Sueur County13
- Lincoln County11
- Mahnomen County8
- Marshall County15
- Martin County15
- McLeod County12
- Meeker County13
- Mille Lacs County12
Questions people actually ask
How many ZIP codes are in Lyon County, Minnesota?
14 ZIP codes reach into Lyon County. 11 of them are only partly in the county and also cover a neighboring county.
Which ZIP code in Lyon County has the most people?
56258 (Marshall) has about 15,888 residents, the most of any ZIP touching Lyon County, in the Census Bureau’s ACS 2020–2024 estimates.
Can a ZIP code be in Lyon County and another county?
Yes. ZIP codes follow mail routes, not county lines. Rows marked with a percentage show how much of that ZIP’s land is in Lyon County. For one address, pin the exact spot on the ZIP finder to see its county.
Where does this list come from?
ZIP areas and their county overlaps come from the Census Bureau’s 2020 ZIP Code Tabulation Area to county relationship file. PO Box ZIPs have no area, so each is placed in the county of the ZIP area nearest the town it serves.
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Updated 2026-11-10 · Where the data comes from