ZIP codes in Marshall County
8 ZIPs touch Marshall County, South Dakota. The blue dashed line is the county border; orange ZIPs reach into it.
8
ZIP codes
5
cross the county line
9,868
people in these ZIPs
66
counties in SD
Most people
Marshall County ZIP list
More counties in South Dakota
- Jones County5
- Kingsbury County9
- Lake County14
- Lawrence County9
- Lincoln County12
- Lyman County9
- McCook County12
- McPherson County6
- Meade County19
- Mellette County7
- Miner County9
- Minnehaha County29
Questions people actually ask
How many ZIP codes are in Marshall County, South Dakota?
8 ZIP codes reach into Marshall County. 5 of them are only partly in the county and also cover a neighboring county.
Which ZIP code in Marshall County has the most people?
57262 (Sisseton) has about 5,100 residents, the most of any ZIP touching Marshall County, in the Census Bureau’s ACS 2020–2024 estimates.
Can a ZIP code be in Marshall 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 Marshall 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.
Keep exploring
Updated 2026-11-10 · Where the data comes from