Systems and methods relating to determining an address of a user by device location prior to sending a replacement card, the method being performed by a card management computing system associated with a card management entity. The method includes determining a location of a mobile device associated with a user via geolocation monitoring of the mobile device. The method further includes determining that a card associated with the user needs to be replaced. Upon determining that the card needs to be replaced, the method further includes determining an address for the user based on the geolocation monitoring. The method further includes sending instructions indicating a replacement card should be mailed to the determined address.