This paper examines the trajectory of low-income neighborhoods in Chicago, classifying them by their economic, housing, racial, and immigrant characteristics. It finds that while Chicago's low-income neighborhoods generally improved notably, the low-income communities closest to downtown enjoyed most significant gains. The city's overwhelmingly black neighborhoods also improved, though they continued to lose substantial portions of their population. Most neighborhoods with high proportions of immigrants declined on a number of economic measures, but the substantial population growth in these neighborhoods bodes well for their future.