Opfertshofen was a municipality in the canton of Schaffhausen in the north of Switzerland. On 1 January 2009 Opfershofen merged with Altdorf, Bibern, Hofen, and Thayngen to form the municipality of Thayngen.Amtliches Gemeindeverzeichnis der Schweiz published by the Swiss Federal Statistical Office accessed 23 September 2009
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