Electronic payment card processing systems and methods include at least one host computing device that accepts transaction data as payment card transactions are made and processed over the multi-party payment processing network. Based on the accepted transaction data, the host computing device identifies a first payment card transaction between a first enrolled cardholder and a first enrolled merchant that includes a delivery of a first good to a location that is within a predefined geographic area including the first enrolled merchant. The host computing device retrieves at least one incentive offer relating to a second enrolled merchant and involving a delivery of a second good within the predefined geographic area, and sends the at least one incentive offer to additional enrolled cardholders within the predefined geographic area.