Abstract: In a method for collecting on judgments, zip code data is maintained in electronic form in a memory of a digital computer. The zip code data includes, for each given zip code, a list of respective zip codes all geographically contiguous to the given zip code. Bank data is also maintained in electronic form in the memory of the digital computer. The bank data includes bank identification information and address zip codes for banks covered by the bank data. In implementing the method, a zip code for a judgment defendant is entered into the computer. The computer is then operated to determine (i) a plurality of zip codes contiguous to the entered zip code and (ii) target banks with addresses having one of the entered zip code and the determined contiguous zip codes.