Named after the British monarch in 1955, Elizabeth is a northern satellite suburb of Adelaide which in recent years has been plagued by unemployment.
In a youth-oriented day on their three-week tour Down Under, the British couple visited a community music programme and a skateboard park, where they had a go at spinning some tracks on the DJ decks and watched some breakdancing.
"She was fantastic," Shane Petersen, a workshop facilitator in the hip hop class the couple visited, said of Kate's ability to scratch a beat. "But he can fly a helicopter so it's horses for courses."
The 31-year-old prince added a blue sky to an aerosol artwork then watched a BMX and scooter display, at which he and the duchess were given a skateboard featuring boxing kangaroos for their baby son George, who is with them on tour.
More From This Section
Catherine, wearing a pale pink Alexander McQueen suit and nude stiletto pumps, also spoke to six-year-old Lauren Stephenson whose cancer has been in remission for two years.
Thousands of people flocked to Elizabeth's Playford Civic Centre, with some staking our their positions before dawn to catch a glimpse of the glamorous pair.
"I think it is marvellous they are actually recognising part of... Adelaide that has had some difficult times," acting South Australian Premier John Rau told the Adelaide Now website.
After the reception, the Duke and Duchess of Cambridge met 100-year-old Monica Swarbrick.
"The duke wished me a happy birthday," she said.