An updated version of the ZIPCODE data set is available. You can download the most recent version from SAS Maps Online. Note that you will need to log in with your SAS profile credentials and supply your SAS Site number.
The new ZIPCODE dataset, for August 2023, contains 41,023 observations and 21 variables. The package also includes the ZIPMIL and ZIPMISC datasets. These additional ZIP codes might not be included with the SASHELP.ZIPCODE file that ships with your version of SAS.
For information on "how to replace sashelp.zipcode", see these SAS Notes:
Usage Note 19861: How to replace the Sashelp.Zipcode data set
Usage Note 42362: How to use a file other than the Zipcode data set supplied by SAS
Source: zipcodedownload.com (August 2023)
