The survey comes after the states of Indiana and Arkansas passed legislation in the form of religious freedom bills last month. Christian Today reported that almost 900 adults were interviewed online for the study.
The findings showed that 52% of Americans supported the right of same-sex couples to marry, whereas 32% opposed it.
Gay rights activists said the Religious Freedom Bill, in each state respectively, encouraged and allowed discrimination against LGBT people.
The governor of Indiana, Mike Pence, set off mass backlash when he signed the law allowing the refusal of services to people based on their beliefs.
Days later Asa Hutchinson, the Arkansas governor made his state legislature change a similar law to avoid opposition and negative reaction.
54% said it was wrong for businesses to refuse services, but 28% agreed companies should have that right.
The Reuters-Ipsos poll found divisions among Americans on where same-sex marriage laws should be made. The largest group, 34% believed same-sex marriage laws should be made by the US Supreme Court. Others thought voter referendums or Congress would be better options.
Each state is looking into their stance on the religious freedom act.