the 2007 federal election the most popular party was the SVP which received 38.62% of the vote. The next three most popular parties were the FDP (18.31%), the CVP (12.21%) and the SP (11.97%). In the federal election, a total of 875 votes were cast, and the voter turnout was 53.8%. The historical population is given in the following table: Heritage sites of national significance The Hohes Haus and the Church of St. Jakob are listed as Swiss heritage sites of national significance. The villages of Märstetten and Ottoberg, the hamlet of Boltshausen and the Ottenberg Südhang area are all listed as part of the Inventory of Swiss Heritage Sites. The Hohes Haus is a half-timbered building which was built in 1613 by Salomon Buchhorner, from the Cathedral of Constance, as a tithe barn. A court room was added in 1620. The walls are decorated with late Renaissance paneling and carvings. The building was restored in 1972. The Church of St. Jakob was first mentioned in 1155 as chapel under the administration of the Cathedral of Constance. The combined bell tower and choir was probably built in the 13th or 14th century. In 1465 the nave was extended toward the west and the tower was raised. The sacristy was added in 1489, bringing the church to its current appearance. In the same year it was raised to a parish church and the center of a local parish. The baptismal font was added in 1590. The pulpit was built in 1790. The sundial was painted in 1808 by Conrad Boltshauser and restored in 1954. During a renovation in 1975, two frescos were discovered. The Weihnachtsgeschichte or Christmas Story was painted in the 15th century, while the Last Judgement is from around 1460–70. The church is shared between the Reformed and Roman Catholic residents, with Reformed services at 9:30 and Catholic Mass at 11:15. For Catholics the church is a chapel under the parish of Weinfelden. Economy , Märstetten had an unemployment rate of 1.46%. , there were 124 people employed in the primary economic sector and about 48 businesses involved in this sector. 307 people are employed in the secondary sector and there are 36 businesses in this sector. 450 people are employed in the tertiary sector, with 70 businesses in this sector. there were 1,587 workers who lived in the municipality. Of these, 856 or about 53.9% of the residents