The automatic zip-code lookup functionality in Campground Master helps speed customer data input.
It includes all codes for both U.S. Zip and Canada postal codes. To use the automatic lookup, just type the zip/postal code in the City field when entering date, and when you press Tab or Enter the program will fill in the city, state, zip and country automatically and instantaneously. (You can also enter it in the Zip field instead, and it will do the lookup if the city and state have not been entered yet -- but using the City field is quicker than skipping to the Zip field.)
Note that there is no need to enter the spaces or capitalize the letters in Canadian codes, it will do that automatically. You can also use the Zip+4 format for U.S. codes if you like.
See Maintenance / Program Options / Zip Codes if you want to change the settings (use upper case, skip the country, or disable the lookup function.).