Research shows that felt age among older adults is a good proxy for their current and future physical and mental health. Using both quantitative and qualitative interview data, we examined correlates of and self-reported reasons for felt age among 102 low–socioeconomic status (SES), non-Hispanic Black and Hispanic older adults who were members of a senior activity center. Fewer activities of daily living (ADL)/instrumental activities of daily living (IADL) impairments, more positive affect, and higher self-efficacy were associated with higher odds of feeling younger, while financial stress was associated with lower odds. The most common self-reported reasons for younger felt age were staying active, followed by good health, positive attitudes, exercise/dancing, independence, interpersonal/intimate relationships, faith/spirituality, volunteering, family, driving/traveling, and being of sound mind. Poor health, lack of energy, and limited ability to engage in activities were self-reported reasons for older felt age. Senior center programs that enable older adults to stay active and socially integrated may contribute to their well-being.