Hoechst, Vorarlberg, municipality in the district of Bregenz, alt. 403 m, pop. 6,423, area 20.16 km2, industrial town situated on the Rhine southwest of Bregenz, close to Lake Constance; parts of the landscape north of Hoechst are a nature conservation area. - Rheinau stadium, local health and social insurance branch office, customs office, customs authority department. 3,444 employed persons 1991, of which about 79 % work in the manufacturing sector: metal-working industry (manufacture of furniture fittings), embroidery, plastics factory, summer tourism. - First documented mention 808 as "Hostadio"; became part of Austria together with the domain of Feldkirch in 1390; parish church (1908-1910) with neo-Baroque interior.