Revictimization, defined as victimization occurring at different points in time, has been found repeatedly in college, community, and clinical samples. Attempts to understand this relation have been theoretically and methodologically limited. Theoretically, most studies have considered only individual level characteristics such as personality traits, and methodologically, the variety of definitions and measures used makes comparisons difficult. This study investigated the effect of homelessness, an exosystem factor, as a moderator of the revictimization relation in a sample of 370 underserved women (191 in prison and 179 seeking healthcare at an urban, public hospital). A series of logistic regressions were conducted to predict adult physical and adult sexual victimization using four different definitions of child sexual abuse and one definition of child physical abuse. Main effects for child abuse, regardless of the definition used, incarceration status and homelessness on both adult physical and adult sexual victimization were consistently found. However, homelessness did not moderate the revictimization relation. The high reported rate of adult physical victimization may have prevented finding an interaction effect, as almost 82% of women reported this experience. Findings underscore the multitude of traumas experienced by this population and the need for primary prevention of child abuse and homelessness.