Systems and methods for generating and implementing a household customer database are disclosed. In one aspect, a method for processing items comprises receiving a first item to be delivered and identifying data corresponding to one or more of a source information and destination information of the first item. The method further comprises identifying secondary information of the first item, storing the source, destination, and secondary information in a database, creating associations between the source, destination, and secondary information, receiving a request to analyze information stored and associated in the database, determining whether the database comprises information necessary to perform the requested analysis, identifying if additional information is needed to perform the requested analysis, updating the secondary information associations to include the additional information if needed to perform the requested analysis, and analyzing the information stored and associated in the database based on the received analysis request or query.