Abstract: The present disclosure describes a targeted advertising system that harnesses an expansive device footprint to create targeted advertisements based on household demographics and characteristics about persons in the households. The targeted advertising system uses device identifiers and longitude/latitude data to map devices to households. After associating devices with a household, the targeted advertising system leverages a wide-array of data assets to create an enormous panel of households, devices, persons, locations, and demographic information for use creating high-precisions, targeted advertising campaigns. This greatly enhanced device footprint creates the opportunity for highly accurate ad targeting across a far greater amount of devices and a larger footprint at any time and place.