ZIP Codes in Mankato, MN
Mankato uses 2 ZIP codes, all in Blue Earth, Nicollet Counties. Pick one below for details, or look up the full nine-digit ZIP+4 for a specific street address.
All 2 Mankato ZIP codes
| ZIP | Type | County | Population |
|---|---|---|---|
| 56001 | standard | Blue Earth | 51,585 |
| 56003 | standard | Nicollet | 15,258 |
Finding a ZIP+4 in Mankato
Knowing which of these 2 ZIP codes covers an address only gets you partway. The four-digit extension identifies the specific delivery point — typically one side of one block. Two houses facing each other on the same Mankato street almost always have different ZIP+4 codes even though they share all five leading digits.
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