A new poll shows a majority of adults in Arizona support gay marriage.

According to a Rocky Mountain Poll of 700 adults released Tuesday, 55 percent of Arizonans favor marriage equality, while 35 percent remain opposed.

Groups in support include women (60%), Hispanics (75%), liberals (67%), moderates (64%), independents (64%), Democrats (70%) and voters under 55 years of age (60%).

Additionally, voters over 54 years of age favor such unions by a 46-40 percent margin.

Majorities of Republicans (53%) and conservatives (51%) remain opposed.

A May, 2012 Public Policy Polling survey of 500 Arizona voters found strong support for either marriage (39%) or civil unions (38%) for gay and lesbian couples. Only 21 percent of respondents said there should be no legal recognition of a gay couple's relationship.

However, Tuesday's poll is the first to find majority support for marriage equality in Arizona.

In 2008, voters overwhelmingly (56-43%) approved a constitutional amendment defining marriage as a heterosexual union.