Despite broad agreement that prioritizing health equity is critical to minimizing the health impacts of climate change, there is a lack of clarity about what advancing health equity means in practice. More than reducing health disparities; it also implies engaging and empowering marginalized communities. We propose a typology of health equity processes, focused on building community agency and power, and then apply it to a nonrepresentative, purposive sample of 48 community-based climate actions (CBCAs) selected from lists of projects funded by foundations and state climate programs and from other sources. All CBCAs were in the United States, community-based, active since 2015 or more recently, engaged in climate mitigation or adaptation, and stated health equity aims. Two team members reviewed project reports to assess the engagement of vulnerable and marginalized populations, agency-building, and transformation of community power relationships. Although 33 CBCAs reported efforts to build community agency, only 19 reported efforts to increase community power. City-led CBCAs showed less emphasis on agency-building and power transformation. This typology can support efforts to advance health equity by providing concrete indicators to diagnose gaps and track progress. (Am J Public Health. 2023;113(2):185-193. https://doi.org/10.2105/AJPH.2022.307143).