The electoral district of Hartley is named after John Hartley, who helped create South Australia's public education system.
The 15.65 square kilometer electorate contains the suburbs of Newton, Paradise, Campbelltown, Hectorville, Magill, and Tranmere.
Hartley is a hard-working, multicultural electorate. A significant proportion of people are from migrant families, with 48 percent having both parents born overseas and 37.6 percent speak two or more languages. There is barely a weekend that does not feature a fair, a fete, a Festa, a festival or a fundraiser.
Vincent Tarzia has lived in the area for many years, and was elected to the South Australian Parliament in 2014 and re-elected in 2018.