Argyle County was one of the original Nineteen Counties in New South Wales and is now one of the 141 Cadastral divisions of New South Wales. It includes the area around Goulburn. It is bounded by Lake George in the south-west, the Shoalhaven River in the east, and the Wollondilly River in the north-east. Argyle County was named by Governor Macquarie after his native county in Scotland. He named it while inspecting the area in 1820. In 1852 it had an area of 1,248,600 acres (5,053 km2) and population of 5,565. It was also described as having productive land and inexhaustible water.