There is only one independent ranking of masters programs in Communication.  In the most recent publication of their rankings in Communication, Eduniversal 2016-2017 ranks SDSU as #5 in the USA and #8 in North America.  Among masters-only programs in the USA, the SDSU M.A. program ranks #1.

http://www.best-masters.com/ranking-master-communications-in-north-america.html