The aim of the article is to assess the situation in terms of wage inequality and identify factors influencing changes in the levels, dynamics and relations of wages in voivodeships in Poland in 2012–2021. In Poland, during the analyzed period, an economic crisis occurred in 2012 as a consequence of the crisis of 2008–2009 and since 2020. Average monthly gross wages in Poland will be used for this purpose. Based on this data, deviations, relationships, and rates of change will be calculated. To carry out the analysis and evaluation, I will use statistical data published in the Statistical Yearbooks of the Central Statistical Office in Warsaw for the years 2012–2021. In this article, the region will be identified with the voivodeship, according to the administrative division.