In this chapter, we examine the significance and complexities of operationalizing social determinants of health (SDOH) indicators. We present best practices and ethical considerations to guide this process and explore emerging trends that shape future of SDOH measurement. These indicators play a critical role in advancing inclusive public health systems and improving outcomes for underserved populations. Our insights are intended for researchers, practitioners, policymakers, and stakeholders involved in the development, implementation, and evaluation of SDOH indicators. Readers are encouraged to consult other chapters in this volume for detailed methods and tools across diverse domains. By effectively operationalizing SDOH indicators, we deepen our understanding of the social and environmental factors that influence health ultimately contributing to more responsive systems and reduced disparities.