OBJECTIVES Prostate cancer is the most common cancer with a current incidence of 0,18% among the 2,6million Finnish men. Demand on health care resource use is dependent on number of patients needing the service. Patient volumes are increasing throughout Europe due to ageing of the population. Despite the stabile or decreasing age-adjusted incidence rates, the absolute number of patients is growing. The population characteristics vary within geographical areas, and thus, using average parameters for the whole country would lead to biased estimates. In this study, burden of prostate cancer cases is estimated on municipality level throughout Finland. METHODS Number of new cancer cases in different hospital districts (N=20) was extracted from the Finnish cancer registry. Official population statistics and forecast were used to identify the current and predicted age and sex distribution in all of the individual municipalities (N=320). The data were combined with Tableau (8.0) software, where a map-based interface was constructed. This was also utilized to visualize the population changes and patient forecasts. Similar methodology has been previously utilized in different cancer types. RESULTS The number of new prostate cancer cases each year is estimated to be 1,5-fold by 2040. As a case example, a Finnish municipality with 135,000 inhabitants was chosen. There were 78 new prostate cancer cases among the 64,332 men in 2011, representing an incidence of 0,12%. According to our analysis, this university city with relatively young population would reach the current country average (0,18%) as late as 2040. CONCLUSIONS The disease burden and population demographics are unevenly distributed across the country, and thus municipality level estimates are needed to inform local decision making and planning. Estimates on the absolute number of patients across relevant disease areas are required in order to prepare to the challenges health care systems are facing in the future.