US Gazetteer > Iowa Gazetteer > Iowa ZIP Codes > County ZIP Codes > Shelby ZIP Codes

ZIP Codes in Shelby County with Associated Cities & Towns

Defiance   51527
Earling   51530
Elk Horn   51531
Harlan   51537
 Harlan   51593
Irwin   51446
Kirkman   51447
Panama   51562
 Portsmouth   51565
Tennant   51537
Westphalia   51578

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.