Support for gay marriage in California has hit a record high as the Supreme Court prepares to decide on the state's ban.

According to the USC Dornsife/Los Angeles Times poll of 1,500 registered voters conducted between May 27 and June 2, 58 percent of Californians support marriage equality, while 36 percent remain opposed.

“There has been movement across the board” in support of gay nuptials, Dave Kanevsky, research director of the American Viewpoint, a GOP polling firm which helped conduct the survey, told The Los Angeles Times.

“Basically, we are all human beings and need to be treated as such,” Mariana Mann, 57, told pollsters.

The poll comes as the Supreme Court prepares to rule on a case challenging the constitutionality of Proposition 8, a voter-approved amendment to the California Constitution which defined marriage as a heterosexual union. Passage in 2008 put an end to the weddings of gay and lesbian couples taking place in the state since its highest court legalized such unions. Before taking effect, an estimated 18,000 couples married.

The Supreme Court could issue a ruling as early as this week.