Couples' marital satisfaction is thought to decline over the newlywed years, but recent research indicates that the majority of spouses have high, stable trajectories during this period and significant declines occur only among initially dissatisfied spouses. These findings are drawn from predominantly White, middle-class samples, however, which may over-estimate marital stability compared to samples with higher levels of sociodemographic risk. Accordingly, the current study tested the generalizability of newlyweds' marital stability by examining satisfaction trajectories among 431 ethnically diverse newlywed couples living in low-income neighborhoods. Consistent with previous work, most spouses had high levels of satisfaction, substantial declines were limited to spouses with lower initial levels of satisfaction, and divorce significantly differed between groups. Wives with higher levels of sociodemographic risk started marriage less satisfied and declined more in satisfaction. Overall, these findings reveal risky and resilient relationships among disadvantaged couples, with considerable stability during the newlywed years.