Rüfenach and Zurzach), being from Late Latin (praedium) Manduccacum, "estate (belonging to) Manduccus".

[3] The major landowners were Säckingen Abbey which possessed considerable property in Mandach and two Habsburg vassals who owned castles in the village.

Due to its location and lack of transportation infrastructure, the village remained untouched by industrialization in the 19th century, which led to a strong population decline.

Of the rest of the land, 0.35 square kilometers (0.14 sq mi) or 6.3% is settled (buildings or roads).

25.4% of the total land area is heavily forested and 1.1% is covered with orchards or small clusters of trees.

The blazon of the municipal coat of arms is Per fess Argent a Semi Negro beaded of the first and Gules.

[8] The age distribution, as of 2008[update], in Mandach is; 38 children or 12.3% of the population are between 0 and 9 years old and 48 teenagers or 15.5% are between 10 and 19.

[10] About 61.5% of the total households were owner occupied, or in other words did not pay rent (though they may have a mortgage or a rent-to-own agreement).

[12] The historical population is given in the following table:[3] The village of Mandach is designated as part of the Inventory of Swiss Heritage Sites.

[8] From the 2000 census[update], 52 or 16.6% were Roman Catholic, while 245 or 78.3% belonged to the Swiss Reformed Church.