Mullumbimby Hydro-electric Power Station Complex Population In the 2016 Census, there were 3,596 people in Mullumbimby. 70.2% of people were born in Australia. The next most common country of birth was England at 5.9%. 82.9% of people spoke only English at home. The most common response for religion was No Religion at 45.3%. Aboriginal and/or Torres Strait Islander people made up 1.9% of the population in 2016. English, Australian, Irish, Scottish and German are the most common ancestries. Geography Mullumbimby is about west of the Pacific Highway, near where the now closed Murwillumbah railway line crosses the Brunswick River. The line opened in 1894 and was closed in 2004 because of an argument over funding between federal and state politicians, despite community resistance across the region. Closure of the railway line between Murwillumbah and Casino has reduced transport options in the region. The Brunswick River starts in Mullumbimby, at the meeting of Main Arm and Mullumbimby creeks. Mullumbimby is close to the localities of Ocean Shores, Brunswick Heads and Wilsons Creek. Its hinterland area includes the locales of Goonengerry, Huonbrook, Koonyum Range, Main Arm, Montecollum, Palmwoods, Wanganui and Wilsons Creek and coincides with the postcode area of 2482 which has a diamond shape of around 35 km by 45 km. The main geographical feature of Mullumbimby, Mount Chincogan, was a minor lava plug of the now extinct Tweed shield volcano. The nearby Mount Warning was the main plug. Stone arrangement Reported stones arrangement on the Slater mounds on the western side of Saddle Ridge is thought by some to date back to the Paleolithic Age, and pre-dates Stonehenge. The arrangements were communicated in the late 1930s by the Brunswick Heads headmaster to Mr Frederic Slater who attempted to make headlines across Australia with this as a highly significant Aboriginal site. Slater and some other researchers believe the inscriptions on the stones contain the earliest form of human language. Others regard this as pure pseudoscience. There is claimed to have been intentional destruction of the site and the 1930s-described stones have disappeared. Health Mullumbimby is a hot spot for the anti-vaccination movement. As of 2013, the towns vaccination rate was the lowest in Australia, with only 46% to 49% of children aged one, two and five years old in the 2482 postcode fully immunised, in contrast with a state average in the low 90s. In Mullumbimby, between 2015 and 2016 only