Wentworth was an electoral district for the Legislative Assembly in the far south west of the Australian state of New South Wales and named after and including the town of Wentworth. It established in 1880 and partly replacing Lachlan. From 1885 until 1889 it elected two members. The population in Wentworth had grown significantly since the 1880 redistribution, especially as a result of the growth of mining at Broken Hill, with the electoral roll growing from 1,901 in 1880 to 5,617 in 1887. Under the formula for seats, Wentworth was due to return 3 members, however because of the large area covered by the district, in 1889 it was split into 3, Wentworth, Sturt and Wilcannia. Wentworth retained the eponymous town, along with the towns of Menindie and Pooncaira. Sturt contained the mining bo