The geography of opportunity is a well-known phrase used to describe the ways that neighborhoods shape important outcomes over the life course. My work on modeling the geography of opportunity formed the foundation of HUD’s formal evaluation of the Baltimore Housing Mobility Program. It also served as the basis of large portions of the Baltimore Regional Plan for Sustainable Development while I was a research assistant at NCSG, and Opportunity360 when I was a postdoctoral fellow at Enterprise Community Partners Inc.