Sense of school belonging has been shown to contribute to a range of academic and psychosocial outcomes, especially among adolescents, and may have particular salience for immigrant students of color, due to their ethnic-racial positionality and frequent marginalization in school. In this study, we examined the ways that immigrant and island-born Puerto Rican students (mean age = 13) with varying years of living in the mainland U.S. felt a sense of belonging in middle school, as well as the factors that undermined this. Based on individual, semi-structured interviews, our qualitative analyses revealed that being seen as competent, contributing members of the school community, as well as positive peer relations, facilitated sense of belonging. Perceptions of equality, where "every person matters equally," also felt inclusive to students. However, lack of English language fluency as a source of bullying, ethnic-racial stereotypes, and perceived racialized treatment from both teachers and peers were powerful sources of "othering" for students, detracting from their feelings of acceptance. We discuss several key areas in which teachers and school counselors can engage in the practice of sensitive care for immigrant students as they seek to find their place in school, based on our findings.