The models on the long term mean rainfall estimations of Isparta region were produced in this study. The maps were formed according to estimation results of models. In modeling, Geographic Information Systems (GIS), Inverse Distance Weighting-IDW estimation method and Kriging Interpolation estimation methods were used. The results of predictions of both methods were compared and the results were evaluated. The evaluation results showed that the estimations and maps of IDW are better than those of Kriging method.