EN
The aim of this paper is to analyze the level of sustainable development (SD) in voivodeships of Poland in the year 2010. The level of SD of voivodeships in Poland was estimated in three dimensions: economic, social and environmental with two methods: soft modeling and TOPSIS. On the basis of sustainable development theory, a soft model has been built to show relations between economy, society and environment as well as their impact on sustainable development. The analysis of results shows optimal relations between the level of economic, social and environmental development, which will allow future generations to make use of existing resources. Application of the soft modeling and TOPSIS method had enabled classifi cation of regions in regard of economy level, society and environment so as the comparison of the results of grouping achieved using this methods. The study was completed with data of Polish Statistic Offi ce collected in 2010.