Nicollet County, Minnesota ZIP Codes

5 ZIP Codes

Zip Code
City
Population ↓
56003Mankato15,258
56082Saint Peter14,606
56074Nicollet1,845
56021Courtland1,108
56054Lafayette853

Overview of ZIP Codes in Nicollet County

ZCTAs are geographic areas created by the US Census Bureau to approximate the delivery areas of ZIP Codes for statistical analysis. While ZCTAs use the same five-digit codes as ZIP Codes, they represent defined geographic areas that may not exactly match the mail delivery routes of ZIP Codes.
5
ZIP Codes

The data shown reflect ZCTAs from the US Census. As of 2025, there are 5 ZCTAs in Nicollet County, Minnesota (US Census).

Sources

  1. US Census: 2025 Gazetteer Files
  2. US Census: ZIP Code Tabulation Areas (ZCTAs)

Recommended Reading