Please do not put this into OSM! USPS ZIP codes are not areas, they are routes. The ZTCA [ZCTA](http://www.census.gov/geo/reference/zctas.html) files from the Census are only approximations of ZIP codes.

Please do not put this into OSM! US zip code boundaries USPS ZIP codes are not areas, they are routes. The ZTCA files from the Census are only approximations of ZIP codes.

Please do not put this into OSM! US zip code boundaries are not areas, they are routes. The ZTCA files from the Census are only approximations of ZIP codes.