This paper considers the role of the American Eugenics Society in the promotion of suburban development in the 1930s and 1940s. From the perspective of these eugenicists, what they described as “urban sterility,” meaning the declining birthrate among white native-born city dwellers, could be addressed by programs encouraging governmental investment in housing and suburban development. The vision was to manage family size, encouraging larger families among the “right” class of Americans, and subsidize movement to the suburbs. Influenced, in part, by the housing programs proposed by Gunnar and Alva Myrdal for Sweden in their book, Crisis in the Population Question [Kris i befolkningsfrågan], Willystine Goodsell, the Vice-President of the American Eugenics Society organized a conference to address how emerging plans for new suburbs meshed with American eugenics. At this meeting, demographers and suburban developers articulated how housing design could support an ideal of the eugenic 4-child family and address concerns regarding the quality and quantity of the American population.