Evaluation is an important element of the public policy cycle, providing information for improving the effectiveness of implemented policies and designing future ones. In Poland, the need for the diffusion of this practice from the field of structural funds to other public policy fields has been discussed for at least 15 years. Although one such obvious direction of diffusion is local government, very little is known about evaluation at this level, and in studies summarising the general evaluation practice in Poland, this strand is omitted. The aim of this study was to assess the extent and characteristics of evaluation practices in the period 2010–2021 in cities with county [Pol. powiat] status. The analysis was based on the information on evaluation studies provided by city halls. Out of the 55 cities that were included in the analysis, 62% carried out evaluations and they completed a total of 469 studies. A systematic increase in the number of studies and the number of cities carrying them out was also observed. The dominant thematic areas were civic budgeting, social policy, and development strategy. The shares of studies carried out internally and those commissioned from external companies turned out to be similar. In contrast, studies of intervention implementation processes dominate over evaluations of intervention effects. This research can serve as a starting point for further, more detailed analyses of the organisation of the evaluation process and its use in local government.