Couples strive to maintain their relationships in the everyday context of their neighborhoods. Living under adverse neighborhood conditions can have damaging effects on relationship quality and well-being (Cutrona et al., 2003; Simons et al., 2002). Research suggests that enduring sustained stress may also exhaust the coping resources needed to provide support to one’s partner (Lyons et al., 1998). Analyzing longitudinal data from 177 African American couples, we examined whether adverse neighborhood social conditions affected support quality in relationships. Multilevel analyses showed that neighborhood social disorder predicted slight decreases in support recipients’ perceptions of their partners’ support quality, while neighborhood-level racial discrimination unexpectedly predicted increases in recipients’ perceived partner support, adjusting for the negative effects of support providers’ direct stress experiences. Our results suggest that whether or not support providers endure stress directly, the everyday contextual conditions of their neighborhoods can actively shape couples’ support dynamics over time.