Southern Boroughs was a former electoral district for the Legislative Assembly in the Australian state of New South Wales created in 1856. It included the towns of Goulburn, Braidwood, Yass and Queanbeyan, while the surrounding rural area were in the electoral districts of Argyle, United Counties of Murray and St Vincent and King and Georgiana. It was replaced by Goulburn, Braidwood, Queanbeyan and Yass in 1859.
References
Electoral district of Southern Boroughs Wikipedia(Text) CC BY-SA