Projected poststroke aphasia prevalence by 2050 (Bhattarai & Mohapatra, 2026)

Purpose: Stroke is the leading cause of aphasia, disproportionately impacting racially and ethnically diverse populations. With the aging and diversification of the U.S. population, stroke-related aphasia prevalence is expected to rise significantly. This article estimates projected prevalence trends of poststroke aphasia through 2050, focusing explicitly on racial/ethnic differences and contributing social determinants of health (SDOH).
Method: This article synthesizes national epidemiological data on stroke prevalence, integrating population projections from the U.S. Census Bureau and public health sources to assess the expected rise in aphasia across racial and ethnic groups. A brief review of literature on SDOH, including socioeconomic status, health care access, and neighborhood factors, is included to contextualize disparities observed in projected aphasia prevalence.
Results: The findings demonstrate significant disparities in stroke and aphasia prevalence across different racial and ethnic groups. Specifically, by 2050, poststroke aphasia cases are projected to nearly double, with the Black population expected to have the highest prevalence rate among all racial and ethnic groups. These trends are driven by demographic shifts, including the aging population and racial/ethnic diversification.
Discussion: The findings highlight the need for targeted health care interventions that address disparities rooted in SDOH affecting stroke and aphasia care. Key priorities include expanding culturally responsive speech-language services, improving access to preventive care and poststroke rehabilitation, and supporting high-risk regions like the Stroke Belt. Integrating demographic and SDOH factors into public health planning and workforce development is essential to reduce the growing burden of stroke-related aphasia and prevent deepening health disparities.
Supplemental Material S1. Raw data.
Bhattarai, B., & Mohapatra, B. (2026). Projected poststroke aphasia prevalence by 2050: Demographic trends, contributing factors, and implications for clinical practice and research. Journal of Speech, Language, and Hearing Research, 69(3), 1105–1115. https://doi.org/10.1044/2025_JSLHR-25-00176