It present you the new, already the 12th edition of the "Statistics of Łódź" – publication, which for almost twenty years, has been providing major statistical data characterizing the capital city of the region. The publication starts with two summary tables including major statistical information describing the city across the years 2000-2017 and presenting Łódź on the background of the voivodship in 2017. The second part contains a rich collection of data characterizing various aspects of economic and social life of the city in recent years. Due to biannual editorial cycle, the statistical evidence presented in this part concerns reference years 2016 and 2017. Detailed tables have been preceded with methodological notes on sources and scope of presented data as well as definitions of terms used. A collection of graphs illustrating some features, phenomena and observed tendencies constitutes a supplement to the results presented in tables.