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ZIP Codes in Trinity County with Associated Cities & Towns

Big Bar   96010
Burnt Ranch   95527
Douglas City   96024
Hayfork   96041
Helena   96048
 Hyampom   96046
Junction City   96048
Lewiston   96052
Mad River   95552
Salyer   95563
 Trinity Center   96091
Trinity Ctr   96091
Weaverville   96093
Zenia   95595

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.