Local governments are willing to use their activities and resources in accordance with the changing and transforming conditions. Especially with the increasing importance of sustainability, economic, social, and environmental strategies are redefining. Thus, a sustainable corporate governance model that includes a systematic and analytical approach should be used to solve the decision-making problem of local governments regarding changing corporate and environmental sustainability strategies. In particular, new measurement methods are required to define the sustainability outputs/strategies of local governments. In this context, it is clear that there is a need for a more holistic approach that focuses not only on the immediate effects at the local government level but also on the positive effects on the entire system. While the study fills this gap, it also evaluates the long-term and sustainable impacts of the organization. The study also contributes to a methodological framework that can help advance future research on the practice of monitoring sustainable development by local governments. This study aims to determine the best corporate sustainability strategy by evaluating environmental sustainability from the perspective of local governments. For this purpose, the criteria were evaluated using trapezoidal interval type-2 fuzzy SWARA, and the alternatives were ranked through trapezoidal interval type-2 fuzzy COPRAS methods. The findings show that net-zero targets and sustainable production are more crucial criteria. Additionally, it has been determined that social and environmental strategies have priority in the selection of alternative criteria related to corporate sustainability. The main finding of this study is that local governments include responsible production criteria in their priority policies. The results obtained contribute to the literature on measuring sustainable development outcomes in local government organizations and identify strategies and improvement opportunities that can lead to better practices.