Increasing suburban poverty and the extremely high housing costs of growing metropolitan areas amplify the importance of suburban low-income housing programs. Aside from traditional hurdles to social and economic mobility, suburban low-income households are confronted by impediments that are inherent to sprawling, fragmented suburban landscapes with poor access. This research investigates the site suitability of a booming suburban region, Fairfax County, Virginia, for low-income housing. To do so, this research identifies and explains location amenities and neighborhood characteristics that maximize the success of low-income housing programs for low income households, and explores how suburban landscapes constrict the ability of policymakers and planners to incorporate such location considerations into low-income housing planning. Using a Geographic Information Systems (GIS) model, the site suitability of Fairfax County, Virginia for low-income housing is examined.