==== Front Innov Aging Innov Aging innovateage Innovation in Aging 2399-5300 Oxford University Press US 10.1093/geroni/igaa057.2610 igaa057.2610 Abstracts Session 6330 (Symposium) AcademicSubjects/SOC02600 Hurricane Irma’s Impact on Assisted Living Residents’ Rates of Hospitalization, Nursing Home Placement, and Mortality Hua Cassandra 1 Hyer Kathryn 2 Zhang Wenhan 3 Ogarek Jessica 4 Dosa David 5 1 Brown University School of Public Health, Providence, Rhode Island, United States 2 University of South Florida, Tampa, Florida, United States 3 Brown University, Providence, Rhode Island, United States 4 Brown University, PROVIDENCE, Rhode Island, United States 5 Brown University, Barrington, Rhode Island, United States 2020 16 12 2020 16 12 2020 4 Suppl 1 Program Abstracts from The GSA 2020 Annual Scientific Meeting “Turning 75: Why Age Matters”734 734 © The Author(s) 2020. Published by Oxford University Press on behalf of The Gerontological Society of America.2020This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.Abstract Little is known about the impact of hurricanes on the large and increasingly vulnerable population residing in assisted living communities (ALs). The objective of this paper was to leverage a novel methodology to identify Medicare beneficiaries residing in Florida ALs and determine their outcomes associated with Hurricane Irma in 2017. With Medicare enrollment records, claims, and the nursing home Minimum Data Set, we identified a cohort of AL residents in 2015 (n=45,505) and 2017 (n=42,306) and compared their rates of 30-day hospitalization, nursing home placement, and mortality in the two years. AL residents in 2017 had a 10% increase in their 30-day hospitalization rates (3.96 in 2015, 4.34 in 2017), 16% increase in their 30-day nursing home placement rates (1.61 in 2015, 1.87 in 2017), and 22% increase in their 30-day mortality (0.54 in 2015, 0.66 in 2017). Findings suggest Florida AL residents experienced adverse outcomes following Hurricane Irma.