Garcetti was re-elected in March after gaining an unassailable lead by winning 81 per cent of the first 90,000 votes counted, claiming the highest margin of victory in nearly a century of Los Angeles Mayoral candidates.

It secured him a second term to lead the United States' second largest city.

In his speech outside City Hall, Garcetti laid out his vision for his second term but also highlighted the potential effects of hosting the Games in seven years’ time.

"We fight for the Olympics not just to watch its torch blaze a third trail through our city, but because we know that torch will call our children out of their homes and into our parks and our play fields," said Garcetti.

"We know that universal access to sports will make Los Angeles the healthiest city in America.

"We know that playing a sport may make the difference between a dropout form and a diploma in our children’s hands."

The inaugural address also marked the city's investments in building new transit lines and housing, raising the minimum wage, developing the city's first sustainability plan and cutting the unemployment rate in half.

As part of the ceremony, several thousand attendees were treated to fencing and table tennis demonstrations from the Avant Garde Fencers Club, SilverLake Fencers and California Table Tennis, accompanied by a recording of Angeleno John Williams' famed Olympic Fanfare and Theme.

Mayor Garcetti's speech follows the announcement that 190 other Southern California cities have endorsed the Los Angeles 2024 bid.

The Southern California Association of Governments (SCAG), which represents six counties, 191 cities and 19 million people, has given its support.

It is claimed the endorsement "reinforces the region’s widespread public and political support behind Los Angeles 2024".

The organisation passed a resolution stating the bid aligns with the region’s long-term planning goals, from transportation to environmental sustainability.

SCAG’s endorsement lauds the bid as “a sustainable, proven plan that maximises the city’s existing world‐class assets and requires no new permanent venue construction”.

“On behalf of LA 2024, we’re grateful for the support from the Southern California Association of Governments," said Los Angeles 2024 chief executive Gene Sykes.

"SCAG’s support is a testament to the bid's sustainable, low-risk, and innovative approach, designed to best fit the plans of our region, not the other way around.”

Los Angeles are competing against Paris to win the rights to host the 2024 Olympics and Paralympics.

Earlier this year, the International Olympic Committee (IOC) Executive Board approved plans to award the 2024 and 2028 editions of the Games at the same time.

The Candidate City Briefing on July 11 and 12 has now been elevated to the level of an Extraordinary IOC Session, with members expected to ratify the double award plan.

It is widely expected that Paris will be awarded the first of these, with Los Angeles staging the event four years later.

A final decision on which city will host the Games is due be made at the IOC Session in Lima on September 13.