This study is to examine how participation in Texas public Pre-Kindergarten (Pre-K) is associated with performance on the 3rd Grade State of Texas Assessment of Academic Readiness (STAAR) Reading assessment. The study focused on five major independent school districts (ISDs) in Texas (Austin ISD, Dallas ISD, Fort Worth ISD, Houston ISD, and San Antonio ISD) and 12 additional school districts surrounding these major metropolitan areas. The first purpose of the report is to educate parents, policy makers, and the public about the association between Texas public Pre-K and 3rd grade STAAR Reading outcomes. Across campuses and students, this study examines the relationship between varying levels of public Pre-K participation and STAAR Reading scores by comparing 3rd grade STAAR Reading means among multiple sub-groups of economically disadvantaged students. The second purpose is to offer policy recommendations that will increase access to and improve the quality of the Texas public Pre-K program.