Between May and August 2021, we carried out an internally-funded project through Central Michigan University’s Faculty Research and Creative Endeavors (FRCE) Committee to create a data repository of numerical values extracted from graphical displays in single-case experimental designs (SCEDs) published in school psychology journals. We identified 477 SCEDs published in 11 different school psychology journals from their inception through 2020. We used plot digitizing software to extract numerical data from graphical displays included in these SCEDs. As of the project completion date, data were extracted from 265 SCEDs. Data are systematically organized in spreadsheets. This data repository allows researchers to download spreadsheets of numerical values extracted from graphical displays in SCEDs published in school psychology journals. Data are formatted in a way that allows researchers to easily conduct quantitative analysis of data using existing statistical software and/or web-based tools.