International students contribute significantly to the diversity and financial well-being of U.S. higher education institutions. These students often experience mistreatment while they are rarely described as a marginalized group in need of inclusive accommodation. This quantitative study investigates perceptions of threat and sense of belonging, loneliness, and psychological well-being among domestic and international students, with particular attention to the largest subgroup of nonimmigrants, Asian students. Data was collected on more than 100,000 international and domestic students in the United States from 2019 to 2022 using the American College Health Association's National College Health Assessment III. The statistical analyses used to explore relationships were descriptive statistics, chi-square and crosstabulation, 2x2x2 ANOVA with F-ratios, Cohen's d for effect sizes, correlation and mediation analysis, and t-tests. The study found that although Asian international students reported slightly higher levels of perceived threat than domestic students, overall threat perceptions were low, with 89.6% reporting minimal to no threat. Among international students that experienced more perceived threat, the association with belonging and well-being was marginal. Male students felt a stronger sense of belonging than females, who reported higher psychological well-being. Loneliness levels were similar between the sexes. Most international students reported a strong sense of belonging and well-being and demonstrably lower levels of sexual harassment. These findings suggest that international students, despite facing mistreatment in higher education, may use in-group belonging, self-efficacy, and other characteristics, as buffers against risks to belonging, increased loneliness, and reduced psychological well-being. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://bibliotheek.ehb.be:2222/en-US/products/dissertations/individuals.shtml.]