This chapter uses the lens of biopolitics and physical culture to revisit the planning of Sunnyside Gardens, New York and Radburn, New Jersey, the two most concerted attempts by planners affiliated with the Regional Planning Association of America to build garden city movement-inspired communities in the United States. To understand the biopolitical underpinnings of both planning projects, the chapter studies the physical cultural forms that were included and part of the community designs. The chapter argues that, comparable to the cultural politics that shaped the planning and physical cultural forms of Letchworth Garden City in the United Kingdom, both Sunnyside and Radburn were ultimately planned based in part on the planners’ assumptions that middle-class, racially exclusive, patriarchal forms of physical culture, installed in relation to open, green, and park-like spaces, would help instill a healthier living environment for resettled Anglo-American families.