Sexual minorities (SM; i.e., lesbian, gay, bisexual, queer, and asexual+) experience high rates of discrimination and stigma, which account for mental health disparities based on sexual orientation (Cochran, 2001; Meyer, 2003). A growing body of research suggests that LGBTQ community may be a source of resilience. This thesis examines two ways that SM can interact with and experience LGBTQ community: LGBTQ community belonging (a subjective sense of belonging or being a part of LGBTQ community; Frost & Meyer, 2012; Puckett et al., 2015) and community involvement (engagement in LGBTQ nightlife, social clubs, politics, and community sports; Foster-Gimbel et al., 2020).Across two time points over an approximately 6.5 week period, 171 SM completed surveys assessing LGBTQ community belonging and community involvement, psychological well-being (depression, anxiety, loneliness, positive affect, and satisfaction with life), perceived social support, and internalized stigma. Analyses focused on (a) relations between community variables (belonging and involvement) and well-being over time, and (b) the potential mediating roles of social support and internalized stigma in these relations. Most hypothesized relations between community variables and future well-being did not emerge. However, results supported associations between community involvement and future satisfaction with life, even after controlling for LGBTQ community belonging. Results also suggested that specific types of community involvement related in unique ways to facets of well-being in the future. Results did not support any of the hypothesized mediated relationships.