The tourism sector in Iran, specifically in Ardabil province, is facing challenges related to spatial organization, limited data, and methodological obstacles that hinder comprehensive development planning. Achieving balanced growth and addressing regional disparities by effectively ranking and equitably allocating tourism infrastructure is crucial for advancing tourism in the region. This study utilizes the TOPSIS model and a descriptive-analytic approach to evaluate tourism infrastructure in Ardabil province and promote sustainable zone development, despite data constraints and methodological complexities. The research highlights the importance of coordinating spatial organization and enhancing interactions among tourist destinations, despite challenges in data collection and methodology. Ranking tourism infrastructure across different regions within the province is essential for informed decision-making. Ardabil 0.672207538, Bilesavar 0.648904625, Khalkhal: 0.545977855, Pars Abad 0.579013247, Kosar 0.521208804, Sareyn 0.541886571, Meshkinshar 0.393576942, Moghan 0.367070217, Namin: 0.30225629, Nir 0.175678498. Ardabil and Sareyn are the top-ranked destinations based on the criteria used for town ranking. These findings emphasize the need for strategic interventions, investments, and the establishment of a more balanced and sustainable tourism industry in Ardabil province, despite limitations in data and methodology.