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ZIP Codes in Louisa County with Associated Cities & Towns

Columbus City   52737
Columbus Jct   52738
Columbus Junction   52738
 Grandview   52752
Letts   52754
Morning Sun   52640
 Oakville   52646
Wapello   52653

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.