Rorschach is a municipality in the Wahlkreis (constituency) of Rorschach in the canton of St. Gallen in Switzerland. It is located on Lake Constance. As of 2003, it had a population of 9000 (approx.) and a surface of 1.78 km˛. The place was first mentioned in 850 as Rorscahun. In 947, Otto I granted the abbot of St. Gall the right for markets, coinage and tariffs at Rorschach. Sights include the Kornhaus, lake promenade, aviation museum in Altenrhein, the abbey Mariaberg, as well as the St. Anna, Wartensee, Sulzberg and Wartegg castles. The train lines link the city to St. Gallen, St. Margrethen, Romanshorn. A rack railway, the Rorschach-Heiden-Bahn, leads to Heiden (800 m a.s.l.). In 1856, the station became the terminus of the line Zurich-St. Gallen.
