Sankt Margarethen
Münchwilen is first mentioned in 1160 as "Munchiwillar". Oberhofen bei Münchwilen is first mentioned in 1160-70 as "Obirhovin". Sankt Margarethen is first mentioned in 1275 as "Affoltrangen sancte Margarete". Hofen-Holzmannshaus is first mentioned in 1244 as "Hovin" and in 1448 as "Holtzmans guot bei Eschlikon". Between 1803-1950 Münchwilen was an "Ortsgemeinde" in the municipality of Sirnach. In a process that lasted from 1812 until 1824, Münchwilen absorbed the municipality of Mezikon. Then, in 1950, the "Ortsgemeinden" of Münchwilen, Oberhofen and St. Margarethen, against opposition from the rest of the villages in Sirnach, merged to form the independent municipality of Münchwilen.