Systems and methods of the disclosure relate to selecting content using beacon identifiers. An indication of a location of a user device and a beacon identifier are received. The beacon identifier can correspond to a beacon at a retail location. A data structure storing attribute data associated with the beacon identifier can be accessed. The attribute data can be associated with a signal having a unique identifier of the user device. The signal can indicate the retail location having the beacon. A request for content for display on the user device can be received. A content item can be selected for display on the user device based on the attribute data. A reward value can be determined based on receiving an indication of user interaction with the content item and the attribute data used to select the content item.