Serpentine is a town in north west Victoria, Australia. Located on the Loddon Valley Highway, the town is 201 kilometres north west of the …Serpentine is a town in north west Victoria, Australia. Located on the Loddon Valley Highway, the town is 201 kilometres north west of the state capital, Melbourne and 51 kilometres north west of the regional centre, Bendigo. Serpentine is in the Shire of Loddon local government area and, including the surrounding state suburb, had a population of 192 at the 2016 census.