This is the OSF page for 'Comparing retinotopic maps of children and adults reveals a late-stage change in how V1 samples the visual field' in Nature Communications, by Marc Himmelberg, Ekin Tuncok, Jesse Gomez, Kalanit Grill-Spector, Marisa Carrasco, and Jonathan Winawer. The full dataset related to this study can be found on OpenNeuro (accession code: ds004440) as the Stanford Child and Adult Checkerboard Retinotopy Dataset. The dataset consists of 49 subjects (25 children and 24 adults), including freesurfer processed anatomical data, raw and preprocessed (via fMRIprep) functional data on the fsnative surface, vistasoft pRF model outputs. A drifting checkerboard stimulus was used to collect the data. Further scan parameters can be found in the publication. Note that the data are in fsnative surface space (rather than volume space). Data can be interpolated onto the T1 volumes found in the freesurfer folders if needed. This OSF repository contains matlab code used to analyse data in the study.