Palm Springs City Council is now entirely made up of LGBT members following elections earlier this week.

Lisa Middleton became California's first openly transgender candidate to be elected to a non-judicial office when she took one of two seats up for grabs on Tuesday after receiving 30 per cent of the vote.

Bisexual candidate Christy Holstege was also elected, receiving around 31 per cent of the vote.

Transgender candidate Lisa Middleton, left, made California history after her election alongside bisexual candidate Christy Holstege, right

It now means the local authority will be 100 per cent LGBT when Ms Middleton and Ms Holstege join three gay men as members in December.

'It’s all because of all of you that we are here tonight, celebrating a victory, a historic victory for our city and for our state,' Ms Middleton told supporters after her victory.

And her campaign manager, James Williamson, told the Desert Sun: 'You're now looking at a progressive city that remains business-focused.

'And I think that's what we're gonna see happen play out over the next 10 years.'

Aerial view of Palm Springs, California. The city's council is now entirely made up of LGBT members

Aisha Moodie-Mills, CEO of Victory Fund, which backs LGBT candidates, said: 'Lisa Middleton shattered a lavender ceiling in California this election day – breaking down barriers to become California’s first trans nonjudicial elected official.

'Trans people remain severely underrepresented in government nationwide, so Lisa’s victory is important not just for Palm Springs or California, but for the entire country.

'Lisa’s historic election victory will be remembered as an important milestone in the movement for LGBTQ equality, and will undoubtedly inspire other trans people to run for office and win.'