US Gazetteer > Illinois Gazetteer > Illinois ZIP Codes > County ZIP Codes > Monroe ZIP Codes

ZIP Codes in Monroe County with Associated Cities & Towns

Columbia   62236
Fults   62244
Hecker   62248
 Maeystown   62256
Renault   62279
 Valmeyer   62295
Waterloo   62298

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.