Objective: Social drivers of health (SDOH) impact health outcomes for children with asthma. Advances in geocoding have enabled better SDOH measurement in research. We aimed to: 1) examine relationship between three SDOH composite indices – Social Vulnerability Index (SVI), Childhood Opportunity Index 3.0 (COI), Area Deprivation Index (ADI) – and asthma patient disposition from the emergency room; and 2) determine which index most closely correlates with admission rates. Methods: Retrospective cohort study of patients 2-18 years presenting with asthma, defined using a computational phenotype requiring: asthma diagnostic code, ≥2 doses of nebulized albuterol, and ≥1 systemic steroid dose within 24 hours of presentation. Data were obtained from 2021-2024 from the Indiana Network for Patient Care, a state-wide health information exchange. Exposures included the three SDOH indices. We used multinomial logistic regression to evaluate associations with patient disposition and recurrent emergency room encounters. Results: Total of 5,965 asthma encounters (4,539 patients) were included, 29.5% of which resulted in admission (56.6% ward, 43.4% ICU). Female gender, chronic illness, ‘other’ preferred language, and >1 year since last outpatient visit increased likelihood of admission. Black race and preferred language of Spanish were associated with lower likelihood (vs. white, English-speaking reference). SVI was the index most closely linked to asthma outcomes and remained in the final regression model, though not statistically significant. Conclusions: Race, language, health insurance, and preventive healthcare access are key drivers of emergency and repeat hospital use in pediatric asthma. SVI may be the most effective ‘geomarker’ to identify high-risk areas for targeted action.