ABSTRACT Neighborhood age composition is an understudied area. Furthermore, existing empirical and conceptual work is conflicting, with some scholarship-indicating neighborhoods with older adults are beneficial and other scholarship suggesting it can be detrimental. Combining data from 7,197 older adults from the first wave (2011) of the National Health & Aging Trends Study and census tract data from the National Neighborhood Change Database, the purposes of our study were to: 1) identify the characteristics of neighborhoods experiencing different types of changes in age composition, and 2) examine the association between neighborhood age composition and self-rated health. Findings indicate that neighborhoods experiencing Concentration (where the number of older adults are declining but their percentage of the total population are increasing), the majority of which are in urban areas, have less aggregate economic resources, more indicators of neighborhood disorder, and less access to services and supports. Regression models also suggest older adults living in Concentration neighborhoods reported lower self-rated health compared to those living in the other three neighborhood types. Findings point to the importance of considering neighborhood age composition when targeting interventions and resources, and the potential consequences of being stuck in place in a neighborhood that does not meet elders’ needs.