Data Download

Dataset	Post office locations, with zip code
Data type	point shapefile
Scale/resolution	no scale
Projection	Decimal Degrees
Date	1999
Source	http://www.census.gov/geo/www/tiger/zip1999.html
Method	Geospatial data for all zip codes in America, Wyoming zip codes extracted in ArcView
Download	Shapefile	Zip size: 9 KB	Unzip size: 26 KB