Founded in 1935, Habonim Dror in North America – with its network of summer camps, local programming and Israel-based activities -- has directly touched on the order of 40,000 Jewish young people, but to date no social scientific survey has sought to understand the scope, depth and extent of its impact. This study, relying upon the responses of almost 2,000 Habonim Dror alumni, ages 18-83, represents a first attempt to assess the impact, and across a range of parameters.