US Gazetteer > Iowa Gazetteer > Iowa ZIP Codes > County ZIP Codes > Mills ZIP Codes

ZIP Codes in Mills County with Associated Cities & Towns

Emerson   51533
Glenwood   51534
Hastings   51540
 Henderson   51541
Malvern   51551
Mineola   51554
 Pacific Jct   51561
Pacific Junction   51561
Silver City   51571

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.