Altkirch is a commune situated in the département of Haut-Rhin and the région of Alsace.
The town is traditionally regarded as the capital of Sundgau.
Its inhabitants are known as Altkirchois (Fem: Altkirchoises).
The resident population number of 5,500 is rather deceptive as some 15,500 people will be in town on a typical working day (4,500 working, 3,000 studying, 3,000 for medical treatment and another 5,000 divided between shopping, administrative offices, cultural and sporting activities).
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