Parking reservation systems and methods for a parking lot having a plurality of individual parking spaces include an electronic database of an inventory of available parking spaces; and at least one processor in communication with the electronic database. The processor can be configured to: (a) accept user input regarding a request for a reserved parking space; (b) automatically reserve a parking space for a patron upon receipt of a payment therefor; (c) generate a confirmation of the reservation for the patron; and (d) automatically adjust the database of the inventory of available spaces based on the reservation. Other systems and methods are configured to identify parking lots with vacancies in a geographical region of interest.