Statewide Delegates: Proportional - the candidates are awarded delegates in proportion to the percentage of votes received. - a 15% threshold is required to receive delegates. Congressional District Delegates: Proportional - the candidates are awarded delegates in proportion to the percentage of votes received. - a 15% threshold is required to receive delegates.
Source for Popular Vote data: Idaho Secretary of State Elections Division. 2020 Presidential Primary Official Election Results, Idaho Secretary of State Elections Division (https://www.livevoterturnout.com/Idaho/LiveResults/1/en/Index_111.html) (accessed 2020-04-09)