Elder is a single-member electoral district for the South Australian House of Assembly.

It is named after nineteenth-century businessman and philanthropist Sir Thomas Elder.

Wade was defeated at the 1997 election – although he experienced a smaller than average swing of −6.1 percent, he only had a margin of 3.4 percent, and was easily defeated by Labor candidate Pat Conlon.

Conlon was re-elected at the 2002 election and became a senior minister in the Rann government.

Conlon retired in 2014 and Elder was retained by Labor's Annabel Digance.