Australia’s cities and regions are a mixed bag when it comes to age and gender ratios, as highlighted by new official data out yesterday. For example, Acton in the ACT, home to the Australian National University, is where you’ll find the youngest median age in the country at a sprightly 20.8 years. On the flip side, Tea Gardens/Hawks Nest on the NSW coast is where you’ll find the oldest median age at 66.2 years. And if you’re a woman looking to sidle up to a bloke for good times, you might want to cross Woollahra in Sydney’s east off the list – it has the lowest male-to-female ratio in the country, with 80.9 males for every 100 females. There’s better hunting to be had in Wacol in Brisbane, where you’ll find the highest ratio at 278.1 males per 100 females – except keep in mind that’s because of the presence of a male correctional centre…