Abstract: A publicity-associated information processing device includes: an area setting unit configured to perform an area setting process of acquiring the number of subjects correlated with a section which is selected in a predetermined sequence on the basis of section subject number information correlated with the number of subjects to whom publicity is to be provided for each section acquired by dividing an area according to a predetermined division rule and setting an evaluation target area including the selected section in a stage in which an accumulated value of the acquired number of subjects satisfies predetermined area setting conditions.