The data used in the manuscript "Effects of dimensionless parameters on the performance of a cross-flow current turbine" by Hannah Ross and Brian Polagye are included in the files 'geometryData.mat', 'turbineData.mat', and 'flowData.mat'. These files contain turbine performance data collected in the Alice C. Tyler recirculating water flume at the University of Washington's Harris Hydraulics Laboratory, in addition to turbine and channel geometry and flow information. The processing code used to produce the results in the manuscript is included in the file 'analyzeScalingData.m'. The helper functions 'getWaterProps.m' and 'XSteam.m' are included as well.