The dissertation examined the significance of disaggregated data in relation to college students' sense of belonging among Latinx ethnic subgroups. Sense of belonging has been positively associated with student persistence, retention, and completion of degree (Korpershoek et al., 2020). Latinx consist of numerous ethnic subgroups, and disaggregated data can assist in identifying educational disparities and achievement gaps. In light of these disparities, the purpose of this dissertation will use a theoretical framework around sense of belonging to determine whether there is a statistically significant difference between Mexicans, Puerto Ricans, Central Americans, and South Americans. The dissertation was inspired after reviewing the 2017 American Community Survey of the U.S. Census Bureau aggregated data which reported that approximately 16% of Latinx aged 25 and older hold a bachelor's degree or higher. The disaggregated data revealed that some groups (e.g., Puerto Ricans [19%], Mexicans [12%], Hondurans [11%], Guatemalans [10%], and Salvadorans [10%]) have low educational attainment, whereas other Latinx ethnic subgroups have higher completion rates (e.g., Ecuadorians [23%], Argentinians [43%], Colombians [33%], Peruvians [32%], and Venezuelans [55%]; U.S. Census, 2017). The study supported the theory that Latinx subgroup South Americans have a higher sense of belonging than Mexicans, Central Americans, or Puerto Ricans. Further research will be required to continue exploring disaggregated data to identify educational disparities and achievement gaps. The disaggregated data can be utilized by policymakers and practitioners to identify and provide ethnic subgroups with the most appropriate resources to increase the completion of degrees amongst the Latinx community. [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.]