Wisconsin Gazetteer > Wisconsin ZIP Codes > County ZIP Codes > Rock ZIP Codes

Also see: ZIP Codes in Rock with Associated Cities & Towns

ZIP Codes in Rock County with Associated Cities & Towns

Afton   53501
Avalon   53505
Beloit   53511
Beloit   53512
Clinton   53525
 Edgerton   53534
Evansville   53536
Footville   53537
Hanover   53542
Janesville   53545
 Janesville   53546
Janesville   53547
Janesville   53548
Milton   53563
Orfordville   53576

ZIP Codes - Key Concepts

  1. ZIP Codes are categories for grouping mailing addresses and are not exact geographic regions.
  2. The centroid of a ZIP Code may be in one County and the associated city/town in another.
  3. In rural areas, a single ZIP Code may be used for cities and towns in several different Counties.
  4. ZIP Code "areas" can overlap, be subsets of each other, or be artificial constructs with no geographic area.
  5. ZIP Codes are only loosely tied to cities.