The topic of this paper is tourism in the Republic of Croatia and the extent of its impact on the national economy. Tourism has been the most important and dominant economic sector in Croatia for many years, contributing the largest share to the economy compared to other European countries. Given the complexity of tourism, it is challenging to fully comprehend and calculate its economic contribution, which has both direct and indirect effects. To understand the scope of its impact and enable deeper insights, this paper conducts a comparison of quantitative indicators of tourism in Croatia and Spain, along with presenting the results of Tourism satellite accounts for Croatia and other European countries. The comparison of tourism results between Croatia and Spain, as well as the tourism satellite accounts of European countries, confirms the high dependency of the Croatian economy on tourism as the primary sector. This underscores the necessity of developing and strengthening other sectors of the economy to achieve greater economic stability and sustainability.