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: Alabama Secretary of State. Amended Certification of Results - Democratic Party Primary, Alabama Secretary of State (http://www.alabamavotes.gov/downloads/election/2016/primary/primaryResultsCertified-Amended-Democratic-2016-06-27.pdf) (accessed 25 Sep 2016)