The COVID-19 Student Survey (CSS) was a multi-agency collaboration designed to examine student needs and health risk behaviors during the COVID-19 pandemic. The survey was intended to be administered online during school hours to students in grades 6 to 12 at all participating schools. Recruitment for the survey was initiated on February 18, 2021 and the survey was administered between March 8-26, 2021. The CSS was funded by the Washington State Health Care Authority (HCA), implemented by a team at the University of Washington (UW), with further partnership around content, design, and dissemination from the Office of Superintendent of Public Instruction (OSPI) and the Washington State Department of Health (DOH).