Fewer than four-in-ten Americans (37%) support gay marriage, while 55% are opposed; support had dipped to 29% in an August 2004 poll, after peaking at 38% in July 2003. Since 2004, support has fluctuated between 33% and 39%. Gay marriage is opposed by most groups in the population; exceptions include young people ages 18-29 (56% support), liberal Democrats (72%), and secular individuals (60%). Democrats continue to be divided on the question (49% support, 43% oppose); Republicans overwhelmingly oppose gay marriage (75% vs. 20% support), with 51% strongly opposed. Read More

Russell Heimlich  is a former web developer at Pew Research Center.