Postmaster Finder
Postal History
Research Sources
Postmaster Finder
Post Offices by County
DEWEY COUNTY,
SOUTH DAKOTA
ZIP Code
Post Office
Date Established
Date Discontinued
57625
EAGLE BUTTE
57628
FIRESTEEL
04/02/1987
57630
GLENCROSS
08/01/2009
57633
ISABEL
LA PLANT
07/01/1984
57636
LANTRY
57647
PARADE
09/28/2002
57652
RIDGEVIEW
57656
TIMBER LAKE
57661
WHITEHORSE
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