ZIP codes in Hanson County

7 ZIPs touch Hanson County, South Dakota. The blue dashed line is the county border; orange ZIPs reach into it.

7

ZIP codes

7

cross the county line

23,383

people in these ZIPs

66

counties in SD

Most people

Hanson County ZIP list

Questions people actually ask

How many ZIP codes are in Hanson County, South Dakota?

7 ZIP codes reach into Hanson County. 7 of them are only partly in the county and also cover a neighboring county.

Which ZIP code in Hanson County has the most people?

57301 (Mitchell) has about 19,104 residents, the most of any ZIP touching Hanson County, in the Census Bureau’s ACS 2020–2024 estimates.

Can a ZIP code be in Hanson 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 Hanson 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.

Updated 2026-11-10 · Where the data comes from