The primary goal of this study is to examine whether educational interest groups’ roles explain local charter school service delivery in Colorado. Many scholars have found that interest groups affect educational policy outcomes and performance at national, state, and local levels. However, it is not clear whether interest groups’ roles are still important in local charter school service delivery. This article seeks to address this lack of knowledge by analyzing the variation of charter school service delivery in Colorado school districts. The present study tests seven hypotheses, using multiple ordinary least square (OLS) regression analysis. The final statistical results demonstrate that a school district with more pro-school choice movement interest groups, minority students, and residents who earn a bachelor's degree or above is more likely to deliver charter school services to its residents.