The objective of this paper is to inform about the current state of the public administration system in the Republic of Croatia, as well as to highlight the opportunities created by the use of modern information technology, primarily marketing information systems. The paper is divided into five chapters. Following the introduction, the second chapter seeks to point out the growing importance of adopting the concepts of marketing in the public sector and, given the current development of new technologies and the tendency to create a knowledge-based society, where information and data owned by the public administration are starting to be regarded as a very important resource, to advert to the advantages of using marketing information systems as tools for effective information management. The third chapter presents analysis of the current state in the development of e-government in Croatia. By means of presenting the results of the European digital progress report (EDPR), a comparison between Croatia and other European Union countries is made. Furthermore, the position of Croatia in a global environment is displayed, using the results of the UN report on the state of development of e-government (UN E-government Survey 2016). The tendencies of further development of e-government in Croatia are also presented in this chapter. In the fourth chapter the information systems of the Ministry of Agriculture are presented. There is a detailed description of the Central Veterinary Information System (SVIS) and the e-Inspektor expert system. As a result of a functionality review, ways of influencing a systematic improvement of work efficiency and transparency due to making optimal decisions based on information, together with the impact on lowering the costs and increasing the quality of the services provided, are presented. The last chapter displays final considerations and the conclusion.