Altona is a predominantly Mennonite town in southern Manitoba about 100 km south-west of Winnipeg and 133 km north of Grand Forks, North Dakota. The population at the 2011 Census was 4,123 residents. It is surrounded by the Rural Municipality of Rhineland. Much of the surrounding area is devoted to farming and agriculture-based business. Its sister city is Emerald, Queensland, Australia. Every year a Sunflower Festival is held in which a young woman in the community is crowned the Sunflower Queen and gets a flight to Emerald for free to participate in the Sunflower Festival held there.