The Zip Code Report shows the number of tickets per zip code for a period of time. For group sales that have more than one program event on the itinerary, the Zip Code Report doubles the number of tickets. For example, if there are 10 group sales visitors, but the group attends two programs, the zip code report shows 20 tickets from the zip code for the group.
The Zip Code Report reports on the number of tickets sold per zip code, not the number of attendees per zip code. Regardless of the sales method, if there are multiple tickets sold, the Zip Code Report will show the number of tickets sold in that zip code.