Slice, There is no zip data in the guide, unfortunately. The addition of ZIPs to our OTA listing was my feeble attempt to provide some help for the folks trying to use that database. The ZIP data presented is from an outside source, Nielsen, which offers these "Primary ZIPs" for each DMA. I am not aware of their criteria for these "Primary ZIPs". At the time I reviewed this, it seemed our only other choice would be to provide a ZIP for each and every station in the list. That would be a mass of data, with dubious value, I'm afraid.